21498984

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 63598080

約数和(自身を除く): 42099096

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 103, 104, 117, 156, 206, 223, 234, 309, 312, 412, 446, 468, 618, 669, 824, 892, 927, 936, 1236, 1338, 1339, 1784, 1854, 2007, 2472, 2676, 2678, 2899, 3708, 4014, 4017, 5352, 5356, 5798, 7416, 8028, 8034, 8697, 10712, 11596, 12051, 16056, 16068, 17394, 22969, 23192, 24102, 26091, 32136, 34788, 45938, 48204, 52182, 68907, 69576, 91876, 96408, 104364, 137814, 183752, 206721, 208728, 275628, 298597, 413442, 551256, 597194, 826884, 895791, 1194388, 1653768, 1791582, 2388776, 2687373, 3583164, 5374746, 7166328, 10749492, 21498984]

約数ペア:

[(1, 21498984), (2, 10749492), (3, 7166328), (4, 5374746), (6, 3583164), (8, 2687373), (9, 2388776), (12, 1791582), (13, 1653768), (18, 1194388), (24, 895791), (26, 826884), (36, 597194), (39, 551256), (52, 413442), (72, 298597), (78, 275628), (103, 208728), (104, 206721), (117, 183752), (156, 137814), (206, 104364), (223, 96408), (234, 91876), (309, 69576), (312, 68907), (412, 52182), (446, 48204), (468, 45938), (618, 34788), (669, 32136), (824, 26091), (892, 24102), (927, 23192), (936, 22969), (1236, 17394), (1338, 16068), (1339, 16056), (1784, 12051), (1854, 11596), (2007, 10712), (2472, 8697), (2676, 8034), (2678, 8028), (2899, 7416), (3708, 5798), (4014, 5356), (4017, 5352)]