21460490

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7919}}^1$

素因数の和:8197

約数の個数: 16

約数和(自身を含む): 38776320

約数和(自身を除く): 17315830

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 7919, 15838, 39595, 79190, 2146049, 4292098, 10730245, 21460490]

約数ペア:

[(1, 21460490), (2, 10730245), (5, 4292098), (10, 2146049), (271, 79190), (542, 39595), (1355, 15838), (2710, 7919)]