19893015

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7247}}^1$

素因数の和:7319

約数の個数: 24

約数和(自身を含む): 35051328

約数和(自身を除く): 15158313

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 7247, 21741, 36235, 65223, 108705, 326115, 442067, 1326201, 2210335, 3978603, 6631005, 19893015]

約数ペア:

[(1, 19893015), (3, 6631005), (5, 3978603), (9, 2210335), (15, 1326201), (45, 442067), (61, 326115), (183, 108705), (305, 65223), (549, 36235), (915, 21741), (2745, 7247)]