21319930

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73517}}^1$

素因数の和:73553

約数の個数: 16

約数和(自身を含む): 39699720

約数和(自身を除く): 18379790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 73517, 147034, 367585, 735170, 2131993, 4263986, 10659965, 21319930]

約数ペア:

[(1, 21319930), (2, 10659965), (5, 4263986), (10, 2131993), (29, 735170), (58, 367585), (145, 147034), (290, 73517)]