18641788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 37416960

約数和(自身を除く): 18775172

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 79, 124, 158, 173, 316, 341, 346, 682, 692, 869, 1364, 1738, 1903, 2449, 3476, 3806, 4898, 5363, 7612, 9796, 10726, 13667, 21452, 26939, 27334, 53878, 54668, 58993, 107756, 117986, 150337, 235972, 300674, 423677, 601348, 847354, 1694708, 4660447, 9320894, 18641788]

約数ペア:

[(1, 18641788), (2, 9320894), (4, 4660447), (11, 1694708), (22, 847354), (31, 601348), (44, 423677), (62, 300674), (79, 235972), (124, 150337), (158, 117986), (173, 107756), (316, 58993), (341, 54668), (346, 53878), (682, 27334), (692, 26939), (869, 21452), (1364, 13667), (1738, 10726), (1903, 9796), (2449, 7612), (3476, 5363), (3806, 4898)]