20918124

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13513}}^1$

素因数の和:13566

約数の個数: 36

約数和(自身を含む): 54110056

約数和(自身を除く): 33191932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13513, 27026, 40539, 54052, 81078, 121617, 162156, 243234, 486468, 581059, 1162118, 1743177, 2324236, 3486354, 5229531, 6972708, 10459062, 20918124]

約数ペア:

[(1, 20918124), (2, 10459062), (3, 6972708), (4, 5229531), (6, 3486354), (9, 2324236), (12, 1743177), (18, 1162118), (36, 581059), (43, 486468), (86, 243234), (129, 162156), (172, 121617), (258, 81078), (387, 54052), (516, 40539), (774, 27026), (1548, 13513)]