21029865

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{653}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 35786880

約数和(自身を除く): 14757015

約数列:

[1, 3, 5, 15, 19, 57, 95, 113, 285, 339, 565, 653, 1695, 1959, 2147, 3265, 6441, 9795, 10735, 12407, 32205, 37221, 62035, 73789, 186105, 221367, 368945, 1106835, 1401991, 4205973, 7009955, 21029865]

約数ペア:

[(1, 21029865), (3, 7009955), (5, 4205973), (15, 1401991), (19, 1106835), (57, 368945), (95, 221367), (113, 186105), (285, 73789), (339, 62035), (565, 37221), (653, 32205), (1695, 12407), (1959, 10735), (2147, 9795), (3265, 6441)]