20272563

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1151}}^1$

素因数の和:1279

約数の個数: 24

約数和(自身を含む): 31150080

約数和(自身を除く): 10877517

約数列:

[1, 3, 9, 19, 57, 103, 171, 309, 927, 1151, 1957, 3453, 5871, 10359, 17613, 21869, 65607, 118553, 196821, 355659, 1066977, 2252507, 6757521, 20272563]

約数ペア:

[(1, 20272563), (3, 6757521), (9, 2252507), (19, 1066977), (57, 355659), (103, 196821), (171, 118553), (309, 65607), (927, 21869), (1151, 17613), (1957, 10359), (3453, 5871)]