21286070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2243}}^1$

素因数の和:2336

約数の個数: 32

約数和(自身を含む): 41846112

約数和(自身を除く): 20560042

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 2243, 4486, 4745, 9490, 11215, 22430, 29159, 58318, 145795, 163739, 291590, 327478, 818695, 1637390, 2128607, 4257214, 10643035, 21286070]

約数ペア:

[(1, 21286070), (2, 10643035), (5, 4257214), (10, 2128607), (13, 1637390), (26, 818695), (65, 327478), (73, 291590), (130, 163739), (146, 145795), (365, 58318), (730, 29159), (949, 22430), (1898, 11215), (2243, 9490), (4486, 4745)]