18561208

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{683}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 36115200

約数和(自身を除く): 17553992

約数列:

[1, 2, 4, 8, 43, 79, 86, 158, 172, 316, 344, 632, 683, 1366, 2732, 3397, 5464, 6794, 13588, 27176, 29369, 53957, 58738, 107914, 117476, 215828, 234952, 431656, 2320151, 4640302, 9280604, 18561208]

約数ペア:

[(1, 18561208), (2, 9280604), (4, 4640302), (8, 2320151), (43, 431656), (79, 234952), (86, 215828), (158, 117476), (172, 107914), (316, 58738), (344, 53957), (632, 29369), (683, 27176), (1366, 13588), (2732, 6794), (3397, 5464)]