21266664

素因数分解:

$2^3\times 3^1\times {\mathrm{349}}^1\times {\mathrm{2539}}^1$

素因数の和:2897

約数の個数: 32

約数和(自身を含む): 53340000

約数和(自身を除く): 32073336

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 349, 698, 1047, 1396, 2094, 2539, 2792, 4188, 5078, 7617, 8376, 10156, 15234, 20312, 30468, 60936, 886111, 1772222, 2658333, 3544444, 5316666, 7088888, 10633332, 21266664]

約数ペア:

[(1, 21266664), (2, 10633332), (3, 7088888), (4, 5316666), (6, 3544444), (8, 2658333), (12, 1772222), (24, 886111), (349, 60936), (698, 30468), (1047, 20312), (1396, 15234), (2094, 10156), (2539, 8376), (2792, 7617), (4188, 5078)]