21177310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3929}}^1$

素因数の和:3961

約数の個数: 48

約数和(自身を含む): 48386160

約数和(自身を除く): 27208850

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 3929, 5390, 7858, 19645, 27503, 39290, 43219, 55006, 86438, 137515, 192521, 216095, 275030, 302533, 385042, 432190, 605066, 962605, 1512665, 1925210, 2117731, 3025330, 4235462, 10588655, 21177310]

約数ペア:

[(1, 21177310), (2, 10588655), (5, 4235462), (7, 3025330), (10, 2117731), (11, 1925210), (14, 1512665), (22, 962605), (35, 605066), (49, 432190), (55, 385042), (70, 302533), (77, 275030), (98, 216095), (110, 192521), (154, 137515), (245, 86438), (385, 55006), (490, 43219), (539, 39290), (770, 27503), (1078, 19645), (2695, 7858), (3929, 5390)]