13908895

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 22867488

約数和(自身を除く): 8958593

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 385, 397, 455, 539, 637, 715, 1001, 1985, 2695, 2779, 3185, 4367, 5005, 5161, 7007, 13895, 19453, 21835, 25805, 30569, 35035, 36127, 56771, 97265, 152845, 180635, 213983, 252889, 283855, 397397, 1069915, 1264445, 1986985, 2781779, 13908895]

約数ペア:

[(1, 13908895), (5, 2781779), (7, 1986985), (11, 1264445), (13, 1069915), (35, 397397), (49, 283855), (55, 252889), (65, 213983), (77, 180635), (91, 152845), (143, 97265), (245, 56771), (385, 36127), (397, 35035), (455, 30569), (539, 25805), (637, 21835), (715, 19453), (1001, 13895), (1985, 7007), (2695, 5161), (2779, 5005), (3185, 4367)]