18657204964

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{382979}}^1$

素因数の和:383643

約数の個数: 24

約数和(自身を含む): 34422242400

約数和(自身を除く): 15765037436

約数列:

[1, 2, 4, 19, 38, 76, 641, 1282, 2564, 12179, 24358, 48716, 382979, 765958, 1531916, 7276601, 14553202, 29106404, 245489539, 490979078, 981958156, 4664301241, 9328602482, 18657204964]

約数ペア:

[(1, 18657204964), (2, 9328602482), (4, 4664301241), (19, 981958156), (38, 490979078), (76, 245489539), (641, 29106404), (1282, 14553202), (2564, 7276601), (12179, 1531916), (24358, 765958), (48716, 382979)]