221515090

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{417953}}^1$

素因数の和:418013

約数の個数: 16

約数和(自身を含む): 406251288

約数和(自身を除く): 184736198

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 417953, 835906, 2089765, 4179530, 22151509, 44303018, 110757545, 221515090]

約数ペア:

[(1, 221515090), (2, 110757545), (5, 44303018), (10, 22151509), (53, 4179530), (106, 2089765), (265, 835906), (530, 417953)]