21401420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36899}}^1$

素因数の和:36937

約数の個数: 24

約数和(自身を含む): 46494000

約数和(自身を除く): 25092580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36899, 73798, 147596, 184495, 368990, 737980, 1070071, 2140142, 4280284, 5350355, 10700710, 21401420]

約数ペア:

[(1, 21401420), (2, 10700710), (4, 5350355), (5, 4280284), (10, 2140142), (20, 1070071), (29, 737980), (58, 368990), (116, 184495), (145, 147596), (290, 73798), (580, 36899)]