20710216

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{773}}^1$

素因数の和:993

約数の個数: 32

約数和(自身を含む): 41378040

約数和(自身を除く): 20667824

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 197, 394, 773, 788, 1546, 1576, 3092, 3349, 6184, 6698, 13141, 13396, 26282, 26792, 52564, 105128, 152281, 304562, 609124, 1218248, 2588777, 5177554, 10355108, 20710216]

約数ペア:

[(1, 20710216), (2, 10355108), (4, 5177554), (8, 2588777), (17, 1218248), (34, 609124), (68, 304562), (136, 152281), (197, 105128), (394, 52564), (773, 26792), (788, 26282), (1546, 13396), (1576, 13141), (3092, 6698), (3349, 6184)]