20117075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{383}}^1$

素因数の和:595

約数の個数: 24

約数和(自身を含む): 27426816

約数和(自身を除く): 7309741

約数列:

[1, 5, 11, 25, 55, 191, 275, 383, 955, 1915, 2101, 4213, 4775, 9575, 10505, 21065, 52525, 73153, 105325, 365765, 804683, 1828825, 4023415, 20117075]

約数ペア:

[(1, 20117075), (5, 4023415), (11, 1828825), (25, 804683), (55, 365765), (191, 105325), (275, 73153), (383, 52525), (955, 21065), (1915, 10505), (2101, 9575), (4213, 4775)]