18979224

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 128

約数和(自身を含む): 55814400

約数和(自身を除く): 36835176

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 29, 33, 37, 44, 58, 66, 67, 74, 87, 88, 111, 116, 132, 134, 148, 174, 201, 222, 232, 264, 268, 296, 319, 348, 402, 407, 444, 536, 638, 696, 737, 804, 814, 888, 957, 1073, 1221, 1276, 1474, 1608, 1628, 1914, 1943, 2146, 2211, 2442, 2479, 2552, 2948, 3219, 3256, 3828, 3886, 4292, 4422, 4884, 4958, 5829, 5896, 6438, 7437, 7656, 7772, 8584, 8844, 9768, 9916, 11658, 11803, 12876, 14874, 15544, 17688, 19832, 21373, 23316, 23606, 25752, 27269, 29748, 35409, 42746, 46632, 47212, 54538, 59496, 64119, 70818, 71891, 81807, 85492, 94424, 109076, 128238, 141636, 143782, 163614, 170984, 215673, 218152, 256476, 283272, 287564, 327228, 431346, 512952, 575128, 654456, 790801, 862692, 1581602, 1725384, 2372403, 3163204, 4744806, 6326408, 9489612, 18979224]

約数ペア:

[(1, 18979224), (2, 9489612), (3, 6326408), (4, 4744806), (6, 3163204), (8, 2372403), (11, 1725384), (12, 1581602), (22, 862692), (24, 790801), (29, 654456), (33, 575128), (37, 512952), (44, 431346), (58, 327228), (66, 287564), (67, 283272), (74, 256476), (87, 218152), (88, 215673), (111, 170984), (116, 163614), (132, 143782), (134, 141636), (148, 128238), (174, 109076), (201, 94424), (222, 85492), (232, 81807), (264, 71891), (268, 70818), (296, 64119), (319, 59496), (348, 54538), (402, 47212), (407, 46632), (444, 42746), (536, 35409), (638, 29748), (696, 27269), (737, 25752), (804, 23606), (814, 23316), (888, 21373), (957, 19832), (1073, 17688), (1221, 15544), (1276, 14874), (1474, 12876), (1608, 11803), (1628, 11658), (1914, 9916), (1943, 9768), (2146, 8844), (2211, 8584), (2442, 7772), (2479, 7656), (2552, 7437), (2948, 6438), (3219, 5896), (3256, 5829), (3828, 4958), (3886, 4884), (4292, 4422)]