18945465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 19761735

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 47, 55, 77, 105, 141, 165, 231, 235, 329, 349, 385, 517, 705, 987, 1047, 1155, 1551, 1645, 1745, 2443, 2585, 3619, 3839, 4935, 5235, 7329, 7755, 10857, 11517, 12215, 16403, 18095, 19195, 26873, 36645, 49209, 54285, 57585, 80619, 82015, 114821, 134365, 180433, 246045, 344463, 403095, 541299, 574105, 902165, 1263031, 1722315, 2706495, 3789093, 6315155, 18945465]

約数ペア:

[(1, 18945465), (3, 6315155), (5, 3789093), (7, 2706495), (11, 1722315), (15, 1263031), (21, 902165), (33, 574105), (35, 541299), (47, 403095), (55, 344463), (77, 246045), (105, 180433), (141, 134365), (165, 114821), (231, 82015), (235, 80619), (329, 57585), (349, 54285), (385, 49209), (517, 36645), (705, 26873), (987, 19195), (1047, 18095), (1155, 16403), (1551, 12215), (1645, 11517), (1745, 10857), (2443, 7755), (2585, 7329), (3619, 5235), (3839, 4935)]