20645118

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{9803}}^1$

素因数の和:9830

約数の個数: 40

約数和(自身を含む): 49823928

約数和(自身を除く): 29178810

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 9803, 19606, 29409, 58818, 88227, 127439, 176454, 254878, 264681, 382317, 529362, 764634, 794043, 1146951, 1588086, 2293902, 3440853, 6881706, 10322559, 20645118]

約数ペア:

[(1, 20645118), (2, 10322559), (3, 6881706), (6, 3440853), (9, 2293902), (13, 1588086), (18, 1146951), (26, 794043), (27, 764634), (39, 529362), (54, 382317), (78, 264681), (81, 254878), (117, 176454), (162, 127439), (234, 88227), (351, 58818), (702, 29409), (1053, 19606), (2106, 9803)]