398788918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1\times {\mathrm{1997}}^1$

素因数の和:2352

約数の個数: 32

約数和(自身を含む): 677561760

約数和(自身を除く): 278772842

約数列:

[1, 2, 11, 22, 29, 58, 313, 319, 626, 638, 1997, 3443, 3994, 6886, 9077, 18154, 21967, 43934, 57913, 99847, 115826, 199694, 625061, 637043, 1250122, 1274086, 6875671, 13751342, 18126769, 36253538, 199394459, 398788918]

約数ペア:

[(1, 398788918), (2, 199394459), (11, 36253538), (22, 18126769), (29, 13751342), (58, 6875671), (313, 1274086), (319, 1250122), (626, 637043), (638, 625061), (1997, 199694), (3443, 115826), (3994, 99847), (6886, 57913), (9077, 43934), (18154, 21967)]