21173230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{601}}^1$

素因数の和:892

約数の個数: 32

約数和(自身を含む): 41263488

約数和(自身を除く): 20090258

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 271, 542, 601, 1202, 1355, 2710, 3005, 3523, 6010, 7046, 7813, 15626, 17615, 35230, 39065, 78130, 162871, 325742, 814355, 1628710, 2117323, 4234646, 10586615, 21173230]

約数ペア:

[(1, 21173230), (2, 10586615), (5, 4234646), (10, 2117323), (13, 1628710), (26, 814355), (65, 325742), (130, 162871), (271, 78130), (542, 39065), (601, 35230), (1202, 17615), (1355, 15626), (2710, 7813), (3005, 7046), (3523, 6010)]