18086915

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 9284605

約数列:

[1, 5, 7, 11, 35, 55, 77, 109, 385, 431, 545, 763, 1199, 2155, 3017, 3815, 4741, 5995, 8393, 15085, 23705, 33187, 41965, 46979, 165935, 234895, 328853, 516769, 1644265, 2583845, 3617383, 18086915]

約数ペア:

[(1, 18086915), (5, 3617383), (7, 2583845), (11, 1644265), (35, 516769), (55, 328853), (77, 234895), (109, 165935), (385, 46979), (431, 41965), (545, 33187), (763, 23705), (1199, 15085), (2155, 8393), (3017, 5995), (3815, 4741)]