21713615

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1151}}^1$

素因数の和:1188

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 11463985

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 343, 385, 539, 1151, 1715, 2695, 3773, 5755, 8057, 12661, 18865, 40285, 56399, 63305, 88627, 281995, 394793, 443135, 620389, 1973965, 3101945, 4342723, 21713615]

約数ペア:

[(1, 21713615), (5, 4342723), (7, 3101945), (11, 1973965), (35, 620389), (49, 443135), (55, 394793), (77, 281995), (245, 88627), (343, 63305), (385, 56399), (539, 40285), (1151, 18865), (1715, 12661), (2695, 8057), (3773, 5755)]