21719025

素因数分解:

$3^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{1163}}^1$

素因数の和:1262

約数の個数: 36

約数和(自身を含む): 39403728

約数和(自身を除く): 17684703

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 83, 225, 249, 415, 747, 1163, 1245, 2075, 3489, 3735, 5815, 6225, 10467, 17445, 18675, 29075, 52335, 87225, 96529, 261675, 289587, 482645, 868761, 1447935, 2413225, 4343805, 7239675, 21719025]

約数ペア:

[(1, 21719025), (3, 7239675), (5, 4343805), (9, 2413225), (15, 1447935), (25, 868761), (45, 482645), (75, 289587), (83, 261675), (225, 96529), (249, 87225), (415, 52335), (747, 29075), (1163, 18675), (1245, 17445), (2075, 10467), (3489, 6225), (3735, 5815)]