18490628

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1609}}^1$

素因数の和:1656

約数の個数: 36

約数和(自身を含む): 37123380

約数和(自身を除く): 18632752

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1609, 2873, 3218, 5746, 6436, 11492, 20917, 27353, 41834, 54706, 83668, 109412, 271921, 355589, 543842, 711178, 1087684, 1422356, 4622657, 9245314, 18490628]

約数ペア:

[(1, 18490628), (2, 9245314), (4, 4622657), (13, 1422356), (17, 1087684), (26, 711178), (34, 543842), (52, 355589), (68, 271921), (169, 109412), (221, 83668), (338, 54706), (442, 41834), (676, 27353), (884, 20917), (1609, 11492), (2873, 6436), (3218, 5746)]