213451990

素因数分解:

$2^1\times 5^1\times {\mathrm{523}}^1\times {\mathrm{40813}}^1$

素因数の和:41343

約数の個数: 16

約数和(自身を含む): 384957648

約数和(自身を除く): 171505658

約数列:

[1, 2, 5, 10, 523, 1046, 2615, 5230, 40813, 81626, 204065, 408130, 21345199, 42690398, 106725995, 213451990]

約数ペア:

[(1, 213451990), (2, 106725995), (5, 42690398), (10, 21345199), (523, 408130), (1046, 204065), (2615, 81626), (5230, 40813)]