18172832

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 37521792

約数和(自身を除く): 19348960

約数列:

[1, 2, 4, 8, 16, 32, 43, 47, 86, 94, 172, 188, 281, 344, 376, 562, 688, 752, 1124, 1376, 1504, 2021, 2248, 4042, 4496, 8084, 8992, 12083, 13207, 16168, 24166, 26414, 32336, 48332, 52828, 64672, 96664, 105656, 193328, 211312, 386656, 422624, 567901, 1135802, 2271604, 4543208, 9086416, 18172832]

約数ペア:

[(1, 18172832), (2, 9086416), (4, 4543208), (8, 2271604), (16, 1135802), (32, 567901), (43, 422624), (47, 386656), (86, 211312), (94, 193328), (172, 105656), (188, 96664), (281, 64672), (344, 52828), (376, 48332), (562, 32336), (688, 26414), (752, 24166), (1124, 16168), (1376, 13207), (1504, 12083), (2021, 8992), (2248, 8084), (4042, 4496)]