20284305

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{691}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 34544640

約数和(自身を除く): 14260335

約数列:

[1, 3, 5, 15, 19, 57, 95, 103, 285, 309, 515, 691, 1545, 1957, 2073, 3455, 5871, 9785, 10365, 13129, 29355, 39387, 65645, 71173, 196935, 213519, 355865, 1067595, 1352287, 4056861, 6761435, 20284305]

約数ペア:

[(1, 20284305), (3, 6761435), (5, 4056861), (15, 1352287), (19, 1067595), (57, 355865), (95, 213519), (103, 196935), (285, 71173), (309, 65645), (515, 39387), (691, 29355), (1545, 13129), (1957, 10365), (2073, 9785), (3455, 5871)]