18910305

素因数分解:

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

素因数の和:238

約数の個数: 36

約数和(自身を含む): 33721428

約数和(自身を除く): 14811123

約数列:

[1, 3, 5, 9, 15, 45, 61, 83, 183, 249, 305, 415, 549, 747, 915, 1245, 2745, 3735, 5063, 6889, 15189, 20667, 25315, 34445, 45567, 62001, 75945, 103335, 227835, 310005, 420229, 1260687, 2101145, 3782061, 6303435, 18910305]

約数ペア:

[(1, 18910305), (3, 6303435), (5, 3782061), (9, 2101145), (15, 1260687), (45, 420229), (61, 310005), (83, 227835), (183, 103335), (249, 75945), (305, 62001), (415, 45567), (549, 34445), (747, 25315), (915, 20667), (1245, 15189), (2745, 6889), (3735, 5063)]