21120052

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 20393420

約数列:

[1, 2, 4, 17, 31, 34, 43, 62, 68, 86, 124, 172, 233, 466, 527, 731, 932, 1054, 1333, 1462, 2108, 2666, 2924, 3961, 5332, 7223, 7922, 10019, 14446, 15844, 20038, 22661, 28892, 40076, 45322, 90644, 122791, 170323, 245582, 310589, 340646, 491164, 621178, 681292, 1242356, 5280013, 10560026, 21120052]

約数ペア:

[(1, 21120052), (2, 10560026), (4, 5280013), (17, 1242356), (31, 681292), (34, 621178), (43, 491164), (62, 340646), (68, 310589), (86, 245582), (124, 170323), (172, 122791), (233, 90644), (466, 45322), (527, 40076), (731, 28892), (932, 22661), (1054, 20038), (1333, 15844), (1462, 14446), (2108, 10019), (2666, 7922), (2924, 7223), (3961, 5332)]