21054430

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{91541}}^1$

素因数の和:91571

約数の個数: 16

約数和(自身を含む): 39546144

約数和(自身を除く): 18491714

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 91541, 183082, 457705, 915410, 2105443, 4210886, 10527215, 21054430]

約数ペア:

[(1, 21054430), (2, 10527215), (5, 4210886), (10, 2105443), (23, 915410), (46, 457705), (115, 183082), (230, 91541)]