21208330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14831}}^1$

素因数の和:14862

約数の個数: 32

約数和(自身を含む): 44851968

約数和(自身を除く): 23643638

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14831, 29662, 74155, 148310, 163141, 192803, 326282, 385606, 815705, 964015, 1631410, 1928030, 2120833, 4241666, 10604165, 21208330]

約数ペア:

[(1, 21208330), (2, 10604165), (5, 4241666), (10, 2120833), (11, 1928030), (13, 1631410), (22, 964015), (26, 815705), (55, 385606), (65, 326282), (110, 192803), (130, 163141), (143, 148310), (286, 74155), (715, 29662), (1430, 14831)]