16805925

素因数分解:

$3^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{661}}^1$

素因数の和:790

約数の個数: 36

約数和(自身を含む): 30413604

約数和(自身を除く): 13607679

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 113, 225, 339, 565, 661, 1017, 1695, 1983, 2825, 3305, 5085, 5949, 8475, 9915, 16525, 25425, 29745, 49575, 74693, 148725, 224079, 373465, 672237, 1120395, 1867325, 3361185, 5601975, 16805925]

約数ペア:

[(1, 16805925), (3, 5601975), (5, 3361185), (9, 1867325), (15, 1120395), (25, 672237), (45, 373465), (75, 224079), (113, 148725), (225, 74693), (339, 49575), (565, 29745), (661, 25425), (1017, 16525), (1695, 9915), (1983, 8475), (2825, 5949), (3305, 5085)]