21091966

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2113}}^1$

素因数の和:2176

約数の個数: 32

約数和(自身を含む): 38965248

約数和(自身を除く): 17873282

約数列:

[1, 2, 7, 14, 23, 31, 46, 62, 161, 217, 322, 434, 713, 1426, 2113, 4226, 4991, 9982, 14791, 29582, 48599, 65503, 97198, 131006, 340193, 458521, 680386, 917042, 1506569, 3013138, 10545983, 21091966]

約数ペア:

[(1, 21091966), (2, 10545983), (7, 3013138), (14, 1506569), (23, 917042), (31, 680386), (46, 458521), (62, 340193), (161, 131006), (217, 97198), (322, 65503), (434, 48599), (713, 29582), (1426, 14791), (2113, 9982), (4226, 4991)]