21023418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{659}}^1$

素因数の和:1086

約数の個数: 32

約数和(自身を含む): 45460800

約数和(自身を除く): 24437382

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 409, 659, 818, 1227, 1318, 1977, 2454, 3954, 5317, 8567, 10634, 15951, 17134, 25701, 31902, 51402, 269531, 539062, 808593, 1617186, 3503903, 7007806, 10511709, 21023418]

約数ペア:

[(1, 21023418), (2, 10511709), (3, 7007806), (6, 3503903), (13, 1617186), (26, 808593), (39, 539062), (78, 269531), (409, 51402), (659, 31902), (818, 25701), (1227, 17134), (1318, 15951), (1977, 10634), (2454, 8567), (3954, 5317)]