18891488

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 50676192

約数和(自身を除く): 31784704

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 32, 34, 41, 44, 56, 68, 77, 82, 88, 112, 119, 121, 136, 154, 164, 176, 187, 224, 238, 242, 272, 287, 308, 328, 352, 374, 451, 476, 484, 544, 574, 616, 656, 697, 748, 847, 902, 952, 968, 1148, 1232, 1309, 1312, 1394, 1496, 1694, 1804, 1904, 1936, 2057, 2296, 2464, 2618, 2788, 2992, 3157, 3388, 3608, 3808, 3872, 4114, 4592, 4879, 4961, 5236, 5576, 5984, 6314, 6776, 7216, 7667, 8228, 9184, 9758, 9922, 10472, 11152, 12628, 13552, 14399, 14432, 15334, 16456, 19516, 19844, 20944, 22304, 25256, 27104, 28798, 30668, 32912, 34727, 39032, 39688, 41888, 50512, 53669, 57596, 61336, 65824, 69454, 78064, 79376, 84337, 101024, 107338, 115192, 122672, 138908, 156128, 158752, 168674, 214676, 230384, 245344, 277816, 337348, 429352, 460768, 555632, 590359, 674696, 858704, 1111264, 1180718, 1349392, 1717408, 2361436, 2698784, 4722872, 9445744, 18891488]

約数ペア:

[(1, 18891488), (2, 9445744), (4, 4722872), (7, 2698784), (8, 2361436), (11, 1717408), (14, 1349392), (16, 1180718), (17, 1111264), (22, 858704), (28, 674696), (32, 590359), (34, 555632), (41, 460768), (44, 429352), (56, 337348), (68, 277816), (77, 245344), (82, 230384), (88, 214676), (112, 168674), (119, 158752), (121, 156128), (136, 138908), (154, 122672), (164, 115192), (176, 107338), (187, 101024), (224, 84337), (238, 79376), (242, 78064), (272, 69454), (287, 65824), (308, 61336), (328, 57596), (352, 53669), (374, 50512), (451, 41888), (476, 39688), (484, 39032), (544, 34727), (574, 32912), (616, 30668), (656, 28798), (697, 27104), (748, 25256), (847, 22304), (902, 20944), (952, 19844), (968, 19516), (1148, 16456), (1232, 15334), (1309, 14432), (1312, 14399), (1394, 13552), (1496, 12628), (1694, 11152), (1804, 10472), (1904, 9922), (1936, 9758), (2057, 9184), (2296, 8228), (2464, 7667), (2618, 7216), (2788, 6776), (2992, 6314), (3157, 5984), (3388, 5576), (3608, 5236), (3808, 4961), (3872, 4879), (4114, 4592)]