21631675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{659}}^1$

素因数の和:783

約数の個数: 24

約数和(自身を含む): 29216880

約数和(自身を除く): 7585205

約数列:

[1, 5, 13, 25, 65, 101, 325, 505, 659, 1313, 2525, 3295, 6565, 8567, 16475, 32825, 42835, 66559, 214175, 332795, 865267, 1663975, 4326335, 21631675]

約数ペア:

[(1, 21631675), (5, 4326335), (13, 1663975), (25, 865267), (65, 332795), (101, 214175), (325, 66559), (505, 42835), (659, 32825), (1313, 16475), (2525, 8567), (3295, 6565)]