18987232

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:224

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 26735648

約数列:

[1, 2, 4, 8, 11, 16, 17, 19, 22, 32, 34, 38, 44, 68, 76, 88, 136, 152, 167, 176, 187, 209, 272, 304, 323, 334, 352, 374, 418, 544, 608, 646, 668, 748, 836, 1292, 1336, 1496, 1672, 1837, 2584, 2672, 2839, 2992, 3173, 3344, 3553, 3674, 5168, 5344, 5678, 5984, 6346, 6688, 7106, 7348, 10336, 11356, 12692, 14212, 14696, 22712, 25384, 28424, 29392, 31229, 34903, 45424, 50768, 53941, 56848, 58784, 62458, 69806, 90848, 101536, 107882, 113696, 124916, 139612, 215764, 249832, 279224, 431528, 499664, 558448, 593351, 863056, 999328, 1116896, 1186702, 1726112, 2373404, 4746808, 9493616, 18987232]

約数ペア:

[(1, 18987232), (2, 9493616), (4, 4746808), (8, 2373404), (11, 1726112), (16, 1186702), (17, 1116896), (19, 999328), (22, 863056), (32, 593351), (34, 558448), (38, 499664), (44, 431528), (68, 279224), (76, 249832), (88, 215764), (136, 139612), (152, 124916), (167, 113696), (176, 107882), (187, 101536), (209, 90848), (272, 69806), (304, 62458), (323, 58784), (334, 56848), (352, 53941), (374, 50768), (418, 45424), (544, 34903), (608, 31229), (646, 29392), (668, 28424), (748, 25384), (836, 22712), (1292, 14696), (1336, 14212), (1496, 12692), (1672, 11356), (1837, 10336), (2584, 7348), (2672, 7106), (2839, 6688), (2992, 6346), (3173, 5984), (3344, 5678), (3553, 5344), (3674, 5168)]