21906770

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70667}}^1$

素因数の和:70705

約数の個数: 16

約数和(自身を含む): 40704768

約数和(自身を除く): 18797998

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 70667, 141334, 353335, 706670, 2190677, 4381354, 10953385, 21906770]

約数ペア:

[(1, 21906770), (2, 10953385), (5, 4381354), (10, 2190677), (31, 706670), (62, 353335), (155, 141334), (310, 70667)]