28451409

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{5231}}^1$

素因数の和:5285

約数の個数: 24

約数和(自身を含む): 45330048

約数和(自身を除く): 16878639

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5231, 5439, 15693, 36617, 109851, 193547, 256319, 580641, 768957, 1354829, 4064487, 9483803, 28451409]

約数ペア:

[(1, 28451409), (3, 9483803), (7, 4064487), (21, 1354829), (37, 768957), (49, 580641), (111, 256319), (147, 193547), (259, 109851), (777, 36617), (1813, 15693), (5231, 5439)]