21167019920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13925671}}^1$

素因数の和:13925703

約数の個数: 40

約数和(自身を含む): 51803499840

約数和(自身を除く): 30636479920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13925671, 27851342, 55702684, 69628355, 111405368, 139256710, 222810736, 264587749, 278513420, 529175498, 557026840, 1058350996, 1114053680, 1322938745, 2116701992, 2645877490, 4233403984, 5291754980, 10583509960, 21167019920]

約数ペア:

[(1, 21167019920), (2, 10583509960), (4, 5291754980), (5, 4233403984), (8, 2645877490), (10, 2116701992), (16, 1322938745), (19, 1114053680), (20, 1058350996), (38, 557026840), (40, 529175498), (76, 278513420), (80, 264587749), (95, 222810736), (152, 139256710), (190, 111405368), (304, 69628355), (380, 55702684), (760, 27851342), (1520, 13925671)]