19500075

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4127}}^1$

素因数の和:4153

約数の個数: 48

約数和(自身を含む): 40949760

約数和(自身を除く): 21449685

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4127, 4725, 12381, 20635, 28889, 37143, 61905, 86667, 103175, 111429, 144445, 185715, 260001, 309525, 433335, 557145, 722225, 780003, 928575, 1300005, 2166675, 2785725, 3900015, 6500025, 19500075]

約数ペア:

[(1, 19500075), (3, 6500025), (5, 3900015), (7, 2785725), (9, 2166675), (15, 1300005), (21, 928575), (25, 780003), (27, 722225), (35, 557145), (45, 433335), (63, 309525), (75, 260001), (105, 185715), (135, 144445), (175, 111429), (189, 103175), (225, 86667), (315, 61905), (525, 37143), (675, 28889), (945, 20635), (1575, 12381), (4127, 4725)]