21432885

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1699}}^1$

素因数の和:1765

約数の個数: 24

約数和(自身を含む): 35536800

約数和(自身を除く): 14103915

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 841, 1699, 2523, 4205, 5097, 8495, 12615, 25485, 49271, 147813, 246355, 739065, 1428859, 4286577, 7144295, 21432885]

約数ペア:

[(1, 21432885), (3, 7144295), (5, 4286577), (15, 1428859), (29, 739065), (87, 246355), (145, 147813), (435, 49271), (841, 25485), (1699, 12615), (2523, 8495), (4205, 5097)]