16819725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1327}}^1$

素因数の和:1366

約数の個数: 36

約数和(自身を含む): 30134976

約数和(自身を除く): 13315251

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 507, 845, 975, 1327, 2535, 3981, 4225, 6635, 12675, 17251, 19905, 33175, 51753, 86255, 99525, 224263, 258765, 431275, 672789, 1121315, 1293825, 3363945, 5606575, 16819725]

約数ペア:

[(1, 16819725), (3, 5606575), (5, 3363945), (13, 1293825), (15, 1121315), (25, 672789), (39, 431275), (65, 258765), (75, 224263), (169, 99525), (195, 86255), (325, 51753), (507, 33175), (845, 19905), (975, 17251), (1327, 12675), (2535, 6635), (3981, 4225)]