21932540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3821}}^1$

素因数の和:3878

約数の個数: 48

約数和(自身を含む): 53936064

約数和(自身を除く): 32003524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3821, 5740, 7642, 15284, 19105, 26747, 38210, 53494, 76420, 106988, 133735, 156661, 267470, 313322, 534940, 626644, 783305, 1096627, 1566610, 2193254, 3133220, 4386508, 5483135, 10966270, 21932540]

約数ペア:

[(1, 21932540), (2, 10966270), (4, 5483135), (5, 4386508), (7, 3133220), (10, 2193254), (14, 1566610), (20, 1096627), (28, 783305), (35, 626644), (41, 534940), (70, 313322), (82, 267470), (140, 156661), (164, 133735), (205, 106988), (287, 76420), (410, 53494), (574, 38210), (820, 26747), (1148, 19105), (1435, 15284), (2870, 7642), (3821, 5740)]