21369290

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^2\times {\mathrm{401}}^1$

素因数の和:554

約数の個数: 24

約数和(自身を含む): 39096108

約数和(自身を除く): 17726818

約数列:

[1, 2, 5, 10, 73, 146, 365, 401, 730, 802, 2005, 4010, 5329, 10658, 26645, 29273, 53290, 58546, 146365, 292730, 2136929, 4273858, 10684645, 21369290]

約数ペア:

[(1, 21369290), (2, 10684645), (5, 4273858), (10, 2136929), (73, 292730), (146, 146365), (365, 58546), (401, 53290), (730, 29273), (802, 26645), (2005, 10658), (4010, 5329)]