21739275

素因数分解:

$3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1823}}^1$

素因数の和:1892

約数の個数: 36

約数和(自身を含む): 39693888

約数和(自身を除く): 17954613

約数列:

[1, 3, 5, 9, 15, 25, 45, 53, 75, 159, 225, 265, 477, 795, 1325, 1823, 2385, 3975, 5469, 9115, 11925, 16407, 27345, 45575, 82035, 96619, 136725, 289857, 410175, 483095, 869571, 1449285, 2415475, 4347855, 7246425, 21739275]

約数ペア:

[(1, 21739275), (3, 7246425), (5, 4347855), (9, 2415475), (15, 1449285), (25, 869571), (45, 483095), (53, 410175), (75, 289857), (159, 136725), (225, 96619), (265, 82035), (477, 45575), (795, 27345), (1325, 16407), (1823, 11925), (2385, 9115), (3975, 5469)]