21657818

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{937}}^1$

素因数の和:1086

約数の個数: 32

約数和(自身を含む): 40341504

約数和(自身を除く): 18683686

約数列:

[1, 2, 7, 13, 14, 26, 91, 127, 182, 254, 889, 937, 1651, 1778, 1874, 3302, 6559, 11557, 12181, 13118, 23114, 24362, 85267, 118999, 170534, 237998, 832993, 1546987, 1665986, 3093974, 10828909, 21657818]

約数ペア:

[(1, 21657818), (2, 10828909), (7, 3093974), (13, 1665986), (14, 1546987), (26, 832993), (91, 237998), (127, 170534), (182, 118999), (254, 85267), (889, 24362), (937, 23114), (1651, 13118), (1778, 12181), (1874, 11557), (3302, 6559)]