17998965

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 32497920

約数和(自身を除く): 14498955

約数列:

[1, 3, 5, 9, 15, 45, 61, 79, 83, 183, 237, 249, 305, 395, 415, 549, 711, 747, 915, 1185, 1245, 2745, 3555, 3735, 4819, 5063, 6557, 14457, 15189, 19671, 24095, 25315, 32785, 43371, 45567, 59013, 72285, 75945, 98355, 216855, 227835, 295065, 399977, 1199931, 1999885, 3599793, 5999655, 17998965]

約数ペア:

[(1, 17998965), (3, 5999655), (5, 3599793), (9, 1999885), (15, 1199931), (45, 399977), (61, 295065), (79, 227835), (83, 216855), (183, 98355), (237, 75945), (249, 72285), (305, 59013), (395, 45567), (415, 43371), (549, 32785), (711, 25315), (747, 24095), (915, 19671), (1185, 15189), (1245, 14457), (2745, 6557), (3555, 5063), (3735, 4819)]