21870408

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^2$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 65620800

約数和(自身を除く): 43750392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 29, 42, 56, 58, 67, 84, 87, 116, 134, 168, 174, 201, 203, 232, 268, 348, 402, 406, 469, 536, 609, 696, 804, 812, 938, 1218, 1407, 1608, 1624, 1876, 1943, 2436, 2814, 3752, 3886, 4489, 4872, 5628, 5829, 7772, 8978, 11256, 11658, 13467, 13601, 15544, 17956, 23316, 26934, 27202, 31423, 35912, 40803, 46632, 53868, 54404, 62846, 81606, 94269, 107736, 108808, 125692, 130181, 163212, 188538, 251384, 260362, 326424, 377076, 390543, 520724, 754152, 781086, 911267, 1041448, 1562172, 1822534, 2733801, 3124344, 3645068, 5467602, 7290136, 10935204, 21870408]

約数ペア:

[(1, 21870408), (2, 10935204), (3, 7290136), (4, 5467602), (6, 3645068), (7, 3124344), (8, 2733801), (12, 1822534), (14, 1562172), (21, 1041448), (24, 911267), (28, 781086), (29, 754152), (42, 520724), (56, 390543), (58, 377076), (67, 326424), (84, 260362), (87, 251384), (116, 188538), (134, 163212), (168, 130181), (174, 125692), (201, 108808), (203, 107736), (232, 94269), (268, 81606), (348, 62846), (402, 54404), (406, 53868), (469, 46632), (536, 40803), (609, 35912), (696, 31423), (804, 27202), (812, 26934), (938, 23316), (1218, 17956), (1407, 15544), (1608, 13601), (1624, 13467), (1876, 11658), (1943, 11256), (2436, 8978), (2814, 7772), (3752, 5829), (3886, 5628), (4489, 4872)]