20561688

素因数分解:

$2^3\times 3^5\times 7^1\times {\mathrm{1511}}^1$

素因数の和:1539

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 45482472

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 243, 252, 324, 378, 486, 504, 567, 648, 756, 972, 1134, 1511, 1512, 1701, 1944, 2268, 3022, 3402, 4533, 4536, 6044, 6804, 9066, 10577, 12088, 13599, 13608, 18132, 21154, 27198, 31731, 36264, 40797, 42308, 54396, 63462, 81594, 84616, 95193, 108792, 122391, 126924, 163188, 190386, 244782, 253848, 285579, 326376, 367173, 380772, 489564, 571158, 734346, 761544, 856737, 979128, 1142316, 1468692, 1713474, 2284632, 2570211, 2937384, 3426948, 5140422, 6853896, 10280844, 20561688]

約数ペア:

[(1, 20561688), (2, 10280844), (3, 6853896), (4, 5140422), (6, 3426948), (7, 2937384), (8, 2570211), (9, 2284632), (12, 1713474), (14, 1468692), (18, 1142316), (21, 979128), (24, 856737), (27, 761544), (28, 734346), (36, 571158), (42, 489564), (54, 380772), (56, 367173), (63, 326376), (72, 285579), (81, 253848), (84, 244782), (108, 190386), (126, 163188), (162, 126924), (168, 122391), (189, 108792), (216, 95193), (243, 84616), (252, 81594), (324, 63462), (378, 54396), (486, 42308), (504, 40797), (567, 36264), (648, 31731), (756, 27198), (972, 21154), (1134, 18132), (1511, 13608), (1512, 13599), (1701, 12088), (1944, 10577), (2268, 9066), (3022, 6804), (3402, 6044), (4533, 4536)]