21056555516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{26339}}^1$

素因数の和:26586

約数の個数: 48

約数和(自身を含む): 39619574400

約数和(自身を除く): 18563018884

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 157, 268, 314, 628, 1273, 2546, 2983, 5092, 5966, 10519, 11932, 21038, 26339, 42076, 52678, 105356, 199861, 399722, 500441, 799444, 1000882, 1764713, 2001764, 3529426, 4135223, 7058852, 8270446, 16540892, 33529547, 67059094, 78569237, 134118188, 157138474, 277059941, 314276948, 554119882, 1108239764, 5264138879, 10528277758, 21056555516]

約数ペア:

[(1, 21056555516), (2, 10528277758), (4, 5264138879), (19, 1108239764), (38, 554119882), (67, 314276948), (76, 277059941), (134, 157138474), (157, 134118188), (268, 78569237), (314, 67059094), (628, 33529547), (1273, 16540892), (2546, 8270446), (2983, 7058852), (5092, 4135223), (5966, 3529426), (10519, 2001764), (11932, 1764713), (21038, 1000882), (26339, 799444), (42076, 500441), (52678, 399722), (105356, 199861)]