21135408

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{62903}}^1$

素因数の和:62921

約数の個数: 40

約数和(自身を含む): 62400768

約数和(自身を除く): 41265360

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 62903, 125806, 188709, 251612, 377418, 440321, 503224, 754836, 880642, 1006448, 1320963, 1509672, 1761284, 2641926, 3019344, 3522568, 5283852, 7045136, 10567704, 21135408]

約数ペア:

[(1, 21135408), (2, 10567704), (3, 7045136), (4, 5283852), (6, 3522568), (7, 3019344), (8, 2641926), (12, 1761284), (14, 1509672), (16, 1320963), (21, 1006448), (24, 880642), (28, 754836), (42, 503224), (48, 440321), (56, 377418), (84, 251612), (112, 188709), (168, 125806), (336, 62903)]