18191272

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{151}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 38495520

約数和(自身を除く): 20304248

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 151, 296, 302, 407, 604, 814, 1208, 1369, 1628, 1661, 2738, 3256, 3322, 5476, 5587, 6644, 10952, 11174, 13288, 15059, 22348, 30118, 44696, 60236, 61457, 120472, 122914, 206719, 245828, 413438, 491656, 826876, 1653752, 2273909, 4547818, 9095636, 18191272]

約数ペア:

[(1, 18191272), (2, 9095636), (4, 4547818), (8, 2273909), (11, 1653752), (22, 826876), (37, 491656), (44, 413438), (74, 245828), (88, 206719), (148, 122914), (151, 120472), (296, 61457), (302, 60236), (407, 44696), (604, 30118), (814, 22348), (1208, 15059), (1369, 13288), (1628, 11174), (1661, 10952), (2738, 6644), (3256, 5587), (3322, 5476)]