21211764

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{677}}^1$

素因数の和:1064

約数の個数: 48

約数和(自身を含む): 56800128

約数和(自身を除く): 35588364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 373, 677, 746, 1119, 1354, 1492, 2031, 2238, 2611, 2708, 4062, 4476, 4739, 5222, 7833, 8124, 9478, 10444, 14217, 15666, 18956, 28434, 31332, 56868, 252521, 505042, 757563, 1010084, 1515126, 1767647, 3030252, 3535294, 5302941, 7070588, 10605882, 21211764]

約数ペア:

[(1, 21211764), (2, 10605882), (3, 7070588), (4, 5302941), (6, 3535294), (7, 3030252), (12, 1767647), (14, 1515126), (21, 1010084), (28, 757563), (42, 505042), (84, 252521), (373, 56868), (677, 31332), (746, 28434), (1119, 18956), (1354, 15666), (1492, 14217), (2031, 10444), (2238, 9478), (2611, 8124), (2708, 7833), (4062, 5222), (4476, 4739)]