78768081

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{18661}}^1$

素因数の和:18741

約数の個数: 24

約数和(自身を含む): 131977664

約数和(自身を除く): 53209583

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 18661, 55983, 130627, 167949, 391881, 1175643, 1250287, 3750861, 8752009, 11252583, 26256027, 78768081]

約数ペア:

[(1, 78768081), (3, 26256027), (7, 11252583), (9, 8752009), (21, 3750861), (63, 1250287), (67, 1175643), (201, 391881), (469, 167949), (603, 130627), (1407, 55983), (4221, 18661)]