17970981

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1283}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 29583360

約数和(自身を除く): 11612379

約数列:

[1, 3, 7, 21, 23, 29, 69, 87, 161, 203, 483, 609, 667, 1283, 2001, 3849, 4669, 8981, 14007, 26943, 29509, 37207, 88527, 111621, 206563, 260449, 619689, 781347, 855761, 2567283, 5990327, 17970981]

約数ペア:

[(1, 17970981), (3, 5990327), (7, 2567283), (21, 855761), (23, 781347), (29, 619689), (69, 260449), (87, 206563), (161, 111621), (203, 88527), (483, 37207), (609, 29509), (667, 26943), (1283, 14007), (2001, 8981), (3849, 4669)]