21835120

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1429}}^1$

素因数の和:1633

約数の個数: 40

約数和(自身を含む): 51068160

約数和(自身を除く): 29233040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1429, 1528, 1910, 2858, 3056, 3820, 5716, 7145, 7640, 11432, 14290, 15280, 22864, 28580, 57160, 114320, 272939, 545878, 1091756, 1364695, 2183512, 2729390, 4367024, 5458780, 10917560, 21835120]

約数ペア:

[(1, 21835120), (2, 10917560), (4, 5458780), (5, 4367024), (8, 2729390), (10, 2183512), (16, 1364695), (20, 1091756), (40, 545878), (80, 272939), (191, 114320), (382, 57160), (764, 28580), (955, 22864), (1429, 15280), (1528, 14290), (1910, 11432), (2858, 7640), (3056, 7145), (3820, 5716)]