21393042

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{373}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 47752320

約数和(自身を除く): 26359278

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 79, 121, 158, 237, 242, 363, 373, 474, 726, 746, 869, 1119, 1738, 2238, 2607, 4103, 5214, 8206, 9559, 12309, 19118, 24618, 28677, 29467, 45133, 57354, 58934, 88401, 90266, 135399, 176802, 270798, 324137, 648274, 972411, 1944822, 3565507, 7131014, 10696521, 21393042]

約数ペア:

[(1, 21393042), (2, 10696521), (3, 7131014), (6, 3565507), (11, 1944822), (22, 972411), (33, 648274), (66, 324137), (79, 270798), (121, 176802), (158, 135399), (237, 90266), (242, 88401), (363, 58934), (373, 57354), (474, 45133), (726, 29467), (746, 28677), (869, 24618), (1119, 19118), (1738, 12309), (2238, 9559), (2607, 8206), (4103, 5214)]