21279330

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:336

約数の個数: 96

約数和(自身を含む): 59304960

約数和(自身を除く): 38025630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 31, 45, 58, 62, 87, 90, 93, 145, 155, 174, 186, 261, 263, 279, 290, 310, 435, 465, 522, 526, 558, 789, 870, 899, 930, 1305, 1315, 1395, 1578, 1798, 2367, 2610, 2630, 2697, 2790, 3945, 4495, 4734, 5394, 7627, 7890, 8091, 8153, 8990, 11835, 13485, 15254, 16182, 16306, 22881, 23670, 24459, 26970, 38135, 40455, 40765, 45762, 48918, 68643, 73377, 76270, 80910, 81530, 114405, 122295, 137286, 146754, 228810, 236437, 244590, 343215, 366885, 472874, 686430, 709311, 733770, 1182185, 1418622, 2127933, 2364370, 3546555, 4255866, 7093110, 10639665, 21279330]

約数ペア:

[(1, 21279330), (2, 10639665), (3, 7093110), (5, 4255866), (6, 3546555), (9, 2364370), (10, 2127933), (15, 1418622), (18, 1182185), (29, 733770), (30, 709311), (31, 686430), (45, 472874), (58, 366885), (62, 343215), (87, 244590), (90, 236437), (93, 228810), (145, 146754), (155, 137286), (174, 122295), (186, 114405), (261, 81530), (263, 80910), (279, 76270), (290, 73377), (310, 68643), (435, 48918), (465, 45762), (522, 40765), (526, 40455), (558, 38135), (789, 26970), (870, 24459), (899, 23670), (930, 22881), (1305, 16306), (1315, 16182), (1395, 15254), (1578, 13485), (1798, 11835), (2367, 8990), (2610, 8153), (2630, 8091), (2697, 7890), (2790, 7627), (3945, 5394), (4495, 4734)]