20211664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4993}}^1$

素因数の和:5035

約数の個数: 40

約数和(自身を含む): 44586432

約数和(自身を除く): 24374768

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 176, 184, 253, 368, 506, 1012, 2024, 4048, 4993, 9986, 19972, 39944, 54923, 79888, 109846, 114839, 219692, 229678, 439384, 459356, 878768, 918712, 1263229, 1837424, 2526458, 5052916, 10105832, 20211664]

約数ペア:

[(1, 20211664), (2, 10105832), (4, 5052916), (8, 2526458), (11, 1837424), (16, 1263229), (22, 918712), (23, 878768), (44, 459356), (46, 439384), (88, 229678), (92, 219692), (176, 114839), (184, 109846), (253, 79888), (368, 54923), (506, 39944), (1012, 19972), (2024, 9986), (4048, 4993)]