21493530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3023}}^1$

素因数の和:3115

約数の個数: 48

約数和(自身を含む): 56609280

約数和(自身を除く): 35115750

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 79, 90, 158, 237, 395, 474, 711, 790, 1185, 1422, 2370, 3023, 3555, 6046, 7110, 9069, 15115, 18138, 27207, 30230, 45345, 54414, 90690, 136035, 238817, 272070, 477634, 716451, 1194085, 1432902, 2149353, 2388170, 3582255, 4298706, 7164510, 10746765, 21493530]

約数ペア:

[(1, 21493530), (2, 10746765), (3, 7164510), (5, 4298706), (6, 3582255), (9, 2388170), (10, 2149353), (15, 1432902), (18, 1194085), (30, 716451), (45, 477634), (79, 272070), (90, 238817), (158, 136035), (237, 90690), (395, 54414), (474, 45345), (711, 30230), (790, 27207), (1185, 18138), (1422, 15115), (2370, 9069), (3023, 7110), (3555, 6046)]