20056617

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 35747712

約数和(自身を除く): 15691095

約数列:

[1, 3, 7, 9, 17, 21, 51, 61, 63, 119, 153, 183, 307, 357, 427, 549, 921, 1037, 1071, 1281, 2149, 2763, 3111, 3843, 5219, 6447, 7259, 9333, 15657, 18727, 19341, 21777, 36533, 46971, 56181, 65331, 109599, 131089, 168543, 318359, 328797, 393267, 955077, 1179801, 2228513, 2865231, 6685539, 20056617]

約数ペア:

[(1, 20056617), (3, 6685539), (7, 2865231), (9, 2228513), (17, 1179801), (21, 955077), (51, 393267), (61, 328797), (63, 318359), (119, 168543), (153, 131089), (183, 109599), (307, 65331), (357, 56181), (427, 46971), (549, 36533), (921, 21777), (1037, 19341), (1071, 18727), (1281, 15657), (2149, 9333), (2763, 7259), (3111, 6447), (3843, 5219)]