28900347

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^2\times {\mathrm{89}}^1$

素因数の和:200

約数の個数: 36

約数和(自身を含む): 46313640

約数和(自身を除く): 17413293

約数列:

[1, 3, 7, 21, 47, 49, 89, 141, 147, 267, 329, 623, 987, 1869, 2209, 2303, 4183, 4361, 6627, 6909, 12549, 13083, 15463, 29281, 46389, 87843, 108241, 196601, 204967, 324723, 589803, 614901, 1376207, 4128621, 9633449, 28900347]

約数ペア:

[(1, 28900347), (3, 9633449), (7, 4128621), (21, 1376207), (47, 614901), (49, 589803), (89, 324723), (141, 204967), (147, 196601), (267, 108241), (329, 87843), (623, 46389), (987, 29281), (1869, 15463), (2209, 13083), (2303, 12549), (4183, 6909), (4361, 6627)]