21319216

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{3691}}^1$

素因数の和:3737

約数の個数: 30

約数和(自身を含む): 43606212

約数和(自身を除く): 22286996

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 361, 722, 1444, 2888, 3691, 5776, 7382, 14764, 29528, 59056, 70129, 140258, 280516, 561032, 1122064, 1332451, 2664902, 5329804, 10659608, 21319216]

約数ペア:

[(1, 21319216), (2, 10659608), (4, 5329804), (8, 2664902), (16, 1332451), (19, 1122064), (38, 561032), (76, 280516), (152, 140258), (304, 70129), (361, 59056), (722, 29528), (1444, 14764), (2888, 7382), (3691, 5776)]