20992452

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2539}}^1$

素因数の和:2612

約数の個数: 48

約数和(自身を含む): 53766720

約数和(自身を除く): 32774268

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2539, 2756, 4134, 5078, 7617, 8268, 10156, 15234, 30468, 33007, 66014, 99021, 132028, 134567, 198042, 269134, 396084, 403701, 538268, 807402, 1614804, 1749371, 3498742, 5248113, 6997484, 10496226, 20992452]

約数ペア:

[(1, 20992452), (2, 10496226), (3, 6997484), (4, 5248113), (6, 3498742), (12, 1749371), (13, 1614804), (26, 807402), (39, 538268), (52, 403701), (53, 396084), (78, 269134), (106, 198042), (156, 134567), (159, 132028), (212, 99021), (318, 66014), (636, 33007), (689, 30468), (1378, 15234), (2067, 10156), (2539, 8268), (2756, 7617), (4134, 5078)]