21762890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{409}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 41711760

約数和(自身を除く): 19948870

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 313, 409, 626, 818, 1565, 2045, 3130, 4090, 5321, 6953, 10642, 13906, 26605, 34765, 53210, 69530, 128017, 256034, 640085, 1280170, 2176289, 4352578, 10881445, 21762890]

約数ペア:

[(1, 21762890), (2, 10881445), (5, 4352578), (10, 2176289), (17, 1280170), (34, 640085), (85, 256034), (170, 128017), (313, 69530), (409, 53210), (626, 34765), (818, 26605), (1565, 13906), (2045, 10642), (3130, 6953), (4090, 5321)]