21000508796

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{1619}}^1\times {\mathrm{53161}}^1$

素因数の和:54845

約数の個数: 24

約数和(自身を含む): 37377138960

約数和(自身を除く): 16376630164

約数列:

[1, 2, 4, 61, 122, 244, 1619, 3238, 6476, 53161, 98759, 106322, 197518, 212644, 395036, 3242821, 6485642, 12971284, 86067659, 172135318, 344270636, 5250127199, 10500254398, 21000508796]

約数ペア:

[(1, 21000508796), (2, 10500254398), (4, 5250127199), (61, 344270636), (122, 172135318), (244, 86067659), (1619, 12971284), (3238, 6485642), (6476, 3242821), (53161, 395036), (98759, 212644), (106322, 197518)]