20003858

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:207

約数の個数: 48

約数和(自身を含む): 36837504

約数和(自身を除く): 16833646

約数列:

[1, 2, 7, 14, 43, 47, 49, 86, 94, 98, 101, 202, 301, 329, 602, 658, 707, 1414, 2021, 2107, 2303, 4042, 4214, 4343, 4606, 4747, 4949, 8686, 9494, 9898, 14147, 28294, 30401, 33229, 60802, 66458, 99029, 198058, 204121, 212807, 232603, 408242, 425614, 465206, 1428847, 2857694, 10001929, 20003858]

約数ペア:

[(1, 20003858), (2, 10001929), (7, 2857694), (14, 1428847), (43, 465206), (47, 425614), (49, 408242), (86, 232603), (94, 212807), (98, 204121), (101, 198058), (202, 99029), (301, 66458), (329, 60802), (602, 33229), (658, 30401), (707, 28294), (1414, 14147), (2021, 9898), (2107, 9494), (2303, 8686), (4042, 4949), (4214, 4747), (4343, 4606)]