18191115

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^2\times {\mathrm{61}}^1$

素因数の和:169

約数の個数: 48

約数和(自身を含む): 33584160

約数和(自身を除く): 15393045

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 61, 135, 141, 183, 235, 305, 423, 549, 705, 915, 1269, 1647, 2115, 2209, 2745, 2867, 6345, 6627, 8235, 8601, 11045, 14335, 19881, 25803, 33135, 43005, 59643, 77409, 99405, 129015, 134749, 298215, 387045, 404247, 673745, 1212741, 2021235, 3638223, 6063705, 18191115]

約数ペア:

[(1, 18191115), (3, 6063705), (5, 3638223), (9, 2021235), (15, 1212741), (27, 673745), (45, 404247), (47, 387045), (61, 298215), (135, 134749), (141, 129015), (183, 99405), (235, 77409), (305, 59643), (423, 43005), (549, 33135), (705, 25803), (915, 19881), (1269, 14335), (1647, 11045), (2115, 8601), (2209, 8235), (2745, 6627), (2867, 6345)]