20938398

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{811}}^1$

素因数の和:1160

約数の個数: 32

約数和(自身を含む): 45290112

約数和(自身を除く): 24351714

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 331, 662, 811, 993, 1622, 1986, 2433, 4303, 4866, 8606, 10543, 12909, 21086, 25818, 31629, 63258, 268441, 536882, 805323, 1610646, 3489733, 6979466, 10469199, 20938398]

約数ペア:

[(1, 20938398), (2, 10469199), (3, 6979466), (6, 3489733), (13, 1610646), (26, 805323), (39, 536882), (78, 268441), (331, 63258), (662, 31629), (811, 25818), (993, 21086), (1622, 12909), (1986, 10543), (2433, 8606), (4303, 4866)]