19307715

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 36416160

約数和(自身を除く): 17108445

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 109, 147, 241, 245, 327, 545, 723, 735, 763, 1205, 1635, 1687, 2289, 3615, 3815, 5061, 5341, 8435, 11445, 11809, 16023, 25305, 26269, 26705, 35427, 59045, 78807, 80115, 131345, 177135, 183883, 394035, 551649, 919415, 1287181, 2758245, 3861543, 6435905, 19307715]

約数ペア:

[(1, 19307715), (3, 6435905), (5, 3861543), (7, 2758245), (15, 1287181), (21, 919415), (35, 551649), (49, 394035), (105, 183883), (109, 177135), (147, 131345), (241, 80115), (245, 78807), (327, 59045), (545, 35427), (723, 26705), (735, 26269), (763, 25305), (1205, 16023), (1635, 11809), (1687, 11445), (2289, 8435), (3615, 5341), (3815, 5061)]