21365377490

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{660853}}^1$

素因数の和:660974

約数の個数: 32

約数和(自身を含む): 39825705456

約数和(自身を除く): 18460327966

約数列:

[1, 2, 5, 10, 53, 61, 106, 122, 265, 305, 530, 610, 3233, 6466, 16165, 32330, 660853, 1321706, 3304265, 6608530, 35025209, 40312033, 70050418, 80624066, 175126045, 201560165, 350252090, 403120330, 2136537749, 4273075498, 10682688745, 21365377490]

約数ペア:

[(1, 21365377490), (2, 10682688745), (5, 4273075498), (10, 2136537749), (53, 403120330), (61, 350252090), (106, 201560165), (122, 175126045), (265, 80624066), (305, 70050418), (530, 40312033), (610, 35025209), (3233, 6608530), (6466, 3304265), (16165, 1321706), (32330, 660853)]