21081928

素因数分解:

$2^3\times 7^1\times {\mathrm{376463}}^1$

素因数の和:376476

約数の個数: 16

約数和(自身を含む): 45175680

約数和(自身を除く): 24093752

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 376463, 752926, 1505852, 2635241, 3011704, 5270482, 10540964, 21081928]

約数ペア:

[(1, 21081928), (2, 10540964), (4, 5270482), (7, 3011704), (8, 2635241), (14, 1505852), (28, 752926), (56, 376463)]