21528612

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28477}}^1$

素因数の和:28497

約数の個数: 48

約数和(自身を含む): 63790720

約数和(自身を除く): 42262108

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28477, 56954, 85431, 113908, 170862, 199339, 256293, 341724, 398678, 512586, 598017, 768879, 797356, 1025172, 1196034, 1537758, 1794051, 2392068, 3075516, 3588102, 5382153, 7176204, 10764306, 21528612]

約数ペア:

[(1, 21528612), (2, 10764306), (3, 7176204), (4, 5382153), (6, 3588102), (7, 3075516), (9, 2392068), (12, 1794051), (14, 1537758), (18, 1196034), (21, 1025172), (27, 797356), (28, 768879), (36, 598017), (42, 512586), (54, 398678), (63, 341724), (84, 256293), (108, 199339), (126, 170862), (189, 113908), (252, 85431), (378, 56954), (756, 28477)]