20589968

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{7993}}^1$

素因数の和:8031

約数の個数: 40

約数和(自身を含む): 47580288

約数和(自身を除く): 26990320

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 7993, 15986, 31972, 55951, 63944, 111902, 127888, 183839, 223804, 367678, 447608, 735356, 895216, 1286873, 1470712, 2573746, 2941424, 5147492, 10294984, 20589968]

約数ペア:

[(1, 20589968), (2, 10294984), (4, 5147492), (7, 2941424), (8, 2573746), (14, 1470712), (16, 1286873), (23, 895216), (28, 735356), (46, 447608), (56, 367678), (92, 223804), (112, 183839), (161, 127888), (184, 111902), (322, 63944), (368, 55951), (644, 31972), (1288, 15986), (2576, 7993)]