21816312

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 66355200

約数和(自身を除く): 44538888

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 59, 62, 71, 84, 93, 118, 124, 142, 168, 177, 186, 213, 217, 236, 248, 284, 354, 372, 413, 426, 434, 472, 497, 568, 651, 708, 744, 826, 852, 868, 994, 1239, 1302, 1416, 1491, 1652, 1704, 1736, 1829, 1988, 2201, 2478, 2604, 2982, 3304, 3658, 3976, 4189, 4402, 4956, 5208, 5487, 5964, 6603, 7316, 8378, 8804, 9912, 10974, 11928, 12567, 12803, 13206, 14632, 15407, 16756, 17608, 21948, 25134, 25606, 26412, 29323, 30814, 33512, 38409, 43896, 46221, 50268, 51212, 52824, 58646, 61628, 76818, 87969, 92442, 100536, 102424, 117292, 123256, 129859, 153636, 175938, 184884, 234584, 259718, 307272, 351876, 369768, 389577, 519436, 703752, 779154, 909013, 1038872, 1558308, 1818026, 2727039, 3116616, 3636052, 5454078, 7272104, 10908156, 21816312]

約数ペア:

[(1, 21816312), (2, 10908156), (3, 7272104), (4, 5454078), (6, 3636052), (7, 3116616), (8, 2727039), (12, 1818026), (14, 1558308), (21, 1038872), (24, 909013), (28, 779154), (31, 703752), (42, 519436), (56, 389577), (59, 369768), (62, 351876), (71, 307272), (84, 259718), (93, 234584), (118, 184884), (124, 175938), (142, 153636), (168, 129859), (177, 123256), (186, 117292), (213, 102424), (217, 100536), (236, 92442), (248, 87969), (284, 76818), (354, 61628), (372, 58646), (413, 52824), (426, 51212), (434, 50268), (472, 46221), (497, 43896), (568, 38409), (651, 33512), (708, 30814), (744, 29323), (826, 26412), (852, 25606), (868, 25134), (994, 21948), (1239, 17608), (1302, 16756), (1416, 15407), (1491, 14632), (1652, 13206), (1704, 12803), (1736, 12567), (1829, 11928), (1988, 10974), (2201, 9912), (2478, 8804), (2604, 8378), (2982, 7316), (3304, 6603), (3658, 5964), (3976, 5487), (4189, 5208), (4402, 4956)]