18189776

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{571}}^1$

素因数の和:771

約数の個数: 40

約数和(自身を含む): 38726688

約数和(自身を除く): 20536912

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 181, 362, 571, 724, 1142, 1448, 1991, 2284, 2896, 3982, 4568, 6281, 7964, 9136, 12562, 15928, 25124, 31856, 50248, 100496, 103351, 206702, 413404, 826808, 1136861, 1653616, 2273722, 4547444, 9094888, 18189776]

約数ペア:

[(1, 18189776), (2, 9094888), (4, 4547444), (8, 2273722), (11, 1653616), (16, 1136861), (22, 826808), (44, 413404), (88, 206702), (176, 103351), (181, 100496), (362, 50248), (571, 31856), (724, 25124), (1142, 15928), (1448, 12562), (1991, 9136), (2284, 7964), (2896, 6281), (3982, 4568)]