19685830

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2693}}^1$

素因数の和:2760

約数の個数: 32

約数和(自身を含む): 38405664

約数和(自身を除く): 18719834

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 2693, 3655, 5386, 7310, 13465, 26930, 45781, 91562, 115799, 228905, 231598, 457810, 578995, 1157990, 1968583, 3937166, 9842915, 19685830]

約数ペア:

[(1, 19685830), (2, 9842915), (5, 3937166), (10, 1968583), (17, 1157990), (34, 578995), (43, 457810), (85, 231598), (86, 228905), (170, 115799), (215, 91562), (430, 45781), (731, 26930), (1462, 13465), (2693, 7310), (3655, 5386)]