20921991528128

素因数分解:

$2^6\times {\mathrm{107}}^1\times {\mathrm{271}}^1\times {\mathrm{2267}}^1\times {\mathrm{4973}}^1$

素因数の和:7630

約数の個数: 112

約数和(自身を含む): 42086732696064

約数和(自身を除く): 21164741167936

約数列:

[1, 2, 4, 8, 16, 32, 64, 107, 214, 271, 428, 542, 856, 1084, 1712, 2168, 2267, 3424, 4336, 4534, 4973, 6848, 8672, 9068, 9946, 17344, 18136, 19892, 28997, 36272, 39784, 57994, 72544, 79568, 115988, 145088, 159136, 231976, 242569, 318272, 463952, 485138, 532111, 614357, 927904, 970276, 1064222, 1228714, 1347683, 1855808, 1940552, 2128444, 2457428, 2695366, 3881104, 4256888, 4914856, 5390732, 7762208, 8513776, 9829712, 10781464, 11273791, 15524416, 17027552, 19659424, 21562928, 22547582, 34055104, 39318848, 43125856, 45095164, 65736199, 86251712, 90190328, 131472398, 144202081, 180380656, 262944796, 288404162, 360761312, 525889592, 576808324, 721522624, 1051779184, 1153616648, 1206295637, 2103558368, 2307233296, 2412591274, 3055197361, 4207116736, 4614466592, 4825182548, 6110394722, 9228933184, 9650365096, 12220789444, 19300730192, 24441578888, 38601460384, 48883157776, 77202920768, 97766315552, 195532631104, 326906117627, 653812235254, 1307624470508, 2615248941016, 5230497882032, 10460995764064, 20921991528128]

約数ペア:

[(1, 20921991528128), (2, 10460995764064), (4, 5230497882032), (8, 2615248941016), (16, 1307624470508), (32, 653812235254), (64, 326906117627), (107, 195532631104), (214, 97766315552), (271, 77202920768), (428, 48883157776), (542, 38601460384), (856, 24441578888), (1084, 19300730192), (1712, 12220789444), (2168, 9650365096), (2267, 9228933184), (3424, 6110394722), (4336, 4825182548), (4534, 4614466592), (4973, 4207116736), (6848, 3055197361), (8672, 2412591274), (9068, 2307233296), (9946, 2103558368), (17344, 1206295637), (18136, 1153616648), (19892, 1051779184), (28997, 721522624), (36272, 576808324), (39784, 525889592), (57994, 360761312), (72544, 288404162), (79568, 262944796), (115988, 180380656), (145088, 144202081), (159136, 131472398), (231976, 90190328), (242569, 86251712), (318272, 65736199), (463952, 45095164), (485138, 43125856), (532111, 39318848), (614357, 34055104), (927904, 22547582), (970276, 21562928), (1064222, 19659424), (1228714, 17027552), (1347683, 15524416), (1855808, 11273791), (1940552, 10781464), (2128444, 9829712), (2457428, 8513776), (2695366, 7762208), (3881104, 5390732), (4256888, 4914856)]