21295868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 42491904

約数和(自身を除く): 21196036

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 103, 127, 148, 206, 254, 407, 412, 508, 814, 1133, 1397, 1628, 2266, 2794, 3811, 4532, 4699, 5588, 7622, 9398, 13081, 15244, 18796, 26162, 41921, 51689, 52324, 83842, 103378, 143891, 167684, 206756, 287782, 483997, 575564, 967994, 1935988, 5323967, 10647934, 21295868]

約数ペア:

[(1, 21295868), (2, 10647934), (4, 5323967), (11, 1935988), (22, 967994), (37, 575564), (44, 483997), (74, 287782), (103, 206756), (127, 167684), (148, 143891), (206, 103378), (254, 83842), (407, 52324), (412, 51689), (508, 41921), (814, 26162), (1133, 18796), (1397, 15244), (1628, 13081), (2266, 9398), (2794, 7622), (3811, 5588), (4532, 4699)]