21014745128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^2\times {\mathrm{32377}}^1$

素因数の和:32554

約数の個数: 48

約数和(自身を含む): 42978880980

約数和(自身を除く): 21964135852

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 158, 316, 632, 1027, 2054, 4108, 6241, 8216, 12482, 24964, 32377, 49928, 64754, 81133, 129508, 162266, 259016, 324532, 420901, 649064, 841802, 1683604, 2557783, 3367208, 5115566, 10231132, 20462264, 33251179, 66502358, 133004716, 202064857, 266009432, 404129714, 808259428, 1616518856, 2626843141, 5253686282, 10507372564, 21014745128]

約数ペア:

[(1, 21014745128), (2, 10507372564), (4, 5253686282), (8, 2626843141), (13, 1616518856), (26, 808259428), (52, 404129714), (79, 266009432), (104, 202064857), (158, 133004716), (316, 66502358), (632, 33251179), (1027, 20462264), (2054, 10231132), (4108, 5115566), (6241, 3367208), (8216, 2557783), (12482, 1683604), (24964, 841802), (32377, 649064), (49928, 420901), (64754, 324532), (81133, 259016), (129508, 162266)]