19914916735

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{348437}}^1$

素因数の和:348543

約数の個数: 32

約数和(自身を含む): 28900841472

約数和(自身を除く): 8985924737

約数列:

[1, 5, 7, 23, 35, 71, 115, 161, 355, 497, 805, 1633, 2485, 8165, 11431, 57155, 348437, 1742185, 2439059, 8014051, 12195295, 24739027, 40070255, 56098357, 123695135, 173173189, 280491785, 568997621, 865865945, 2844988105, 3982983347, 19914916735]

約数ペア:

[(1, 19914916735), (5, 3982983347), (7, 2844988105), (23, 865865945), (35, 568997621), (71, 280491785), (115, 173173189), (161, 123695135), (355, 56098357), (497, 40070255), (805, 24739027), (1633, 12195295), (2485, 8014051), (8165, 2439059), (11431, 1742185), (57155, 348437)]