17997945

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 34276608

約数和(自身を除く): 16278663

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 49, 105, 141, 147, 235, 245, 329, 521, 705, 735, 987, 1563, 1645, 2303, 2605, 3647, 4935, 6909, 7815, 10941, 11515, 18235, 24487, 25529, 34545, 54705, 73461, 76587, 122435, 127645, 171409, 367305, 382935, 514227, 857045, 1199863, 2571135, 3599589, 5999315, 17997945]

約数ペア:

[(1, 17997945), (3, 5999315), (5, 3599589), (7, 2571135), (15, 1199863), (21, 857045), (35, 514227), (47, 382935), (49, 367305), (105, 171409), (141, 127645), (147, 122435), (235, 76587), (245, 73461), (329, 54705), (521, 34545), (705, 25529), (735, 24487), (987, 18235), (1563, 11515), (1645, 10941), (2303, 7815), (2605, 6909), (3647, 4935)]