18172544

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 39812640

約数和(自身を除く): 21640096

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 67, 104, 128, 134, 163, 208, 268, 326, 416, 536, 652, 832, 871, 1072, 1304, 1664, 1742, 2119, 2144, 2608, 3484, 4238, 4288, 5216, 6968, 8476, 8576, 10432, 10921, 13936, 16952, 20864, 21842, 27872, 33904, 43684, 55744, 67808, 87368, 111488, 135616, 141973, 174736, 271232, 283946, 349472, 567892, 698944, 1135784, 1397888, 2271568, 4543136, 9086272, 18172544]

約数ペア:

[(1, 18172544), (2, 9086272), (4, 4543136), (8, 2271568), (13, 1397888), (16, 1135784), (26, 698944), (32, 567892), (52, 349472), (64, 283946), (67, 271232), (104, 174736), (128, 141973), (134, 135616), (163, 111488), (208, 87368), (268, 67808), (326, 55744), (416, 43684), (536, 33904), (652, 27872), (832, 21842), (871, 20864), (1072, 16952), (1304, 13936), (1664, 10921), (1742, 10432), (2119, 8576), (2144, 8476), (2608, 6968), (3484, 5216), (4238, 4288)]