21795170

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{421}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 40836096

約数和(自身を除く): 19040926

約数列:

[1, 2, 5, 10, 31, 62, 155, 167, 310, 334, 421, 835, 842, 1670, 2105, 4210, 5177, 10354, 13051, 25885, 26102, 51770, 65255, 70307, 130510, 140614, 351535, 703070, 2179517, 4359034, 10897585, 21795170]

約数ペア:

[(1, 21795170), (2, 10897585), (5, 4359034), (10, 2179517), (31, 703070), (62, 351535), (155, 140614), (167, 130510), (310, 70307), (334, 65255), (421, 51770), (835, 26102), (842, 25885), (1670, 13051), (2105, 10354), (4210, 5177)]