18893784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 59834880

約数和(自身を除く): 40941096

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 41, 42, 52, 56, 78, 82, 84, 91, 104, 123, 156, 164, 168, 182, 211, 246, 273, 287, 312, 328, 364, 422, 492, 533, 546, 574, 633, 728, 844, 861, 984, 1066, 1092, 1148, 1266, 1477, 1599, 1688, 1722, 2132, 2184, 2296, 2532, 2743, 2954, 3198, 3444, 3731, 4264, 4431, 5064, 5486, 5908, 6396, 6888, 7462, 8229, 8651, 8862, 10972, 11193, 11816, 12792, 14924, 16458, 17302, 17724, 19201, 21944, 22386, 25953, 29848, 32916, 34604, 35448, 38402, 44772, 51906, 57603, 60557, 65832, 69208, 76804, 89544, 103812, 112463, 115206, 121114, 153608, 181671, 207624, 224926, 230412, 242228, 337389, 363342, 449852, 460824, 484456, 674778, 726684, 787241, 899704, 1349556, 1453368, 1574482, 2361723, 2699112, 3148964, 4723446, 6297928, 9446892, 18893784]

約数ペア:

[(1, 18893784), (2, 9446892), (3, 6297928), (4, 4723446), (6, 3148964), (7, 2699112), (8, 2361723), (12, 1574482), (13, 1453368), (14, 1349556), (21, 899704), (24, 787241), (26, 726684), (28, 674778), (39, 484456), (41, 460824), (42, 449852), (52, 363342), (56, 337389), (78, 242228), (82, 230412), (84, 224926), (91, 207624), (104, 181671), (123, 153608), (156, 121114), (164, 115206), (168, 112463), (182, 103812), (211, 89544), (246, 76804), (273, 69208), (287, 65832), (312, 60557), (328, 57603), (364, 51906), (422, 44772), (492, 38402), (533, 35448), (546, 34604), (574, 32916), (633, 29848), (728, 25953), (844, 22386), (861, 21944), (984, 19201), (1066, 17724), (1092, 17302), (1148, 16458), (1266, 14924), (1477, 12792), (1599, 11816), (1688, 11193), (1722, 10972), (2132, 8862), (2184, 8651), (2296, 8229), (2532, 7462), (2743, 6888), (2954, 6396), (3198, 5908), (3444, 5486), (3731, 5064), (4264, 4431)]