21397126275

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{56843}}^1$

素因数の和:57105

約数の個数: 72

約数和(自身を含む): 43983613440

約数和(自身を除く): 22586487165

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 239, 315, 525, 717, 1195, 1575, 1673, 2151, 3585, 5019, 5975, 8365, 10755, 15057, 17925, 25095, 41825, 53775, 56843, 75285, 125475, 170529, 284215, 376425, 397901, 511587, 852645, 1193703, 1421075, 1989505, 2557935, 3581109, 4263225, 5968515, 9947525, 12789675, 13585477, 17905545, 29842575, 40756431, 67927385, 89527725, 95098339, 122269293, 203782155, 285295017, 339636925, 475491695, 611346465, 855885051, 1018910775, 1426475085, 2377458475, 3056732325, 4279425255, 7132375425, 21397126275]

約数ペア:

[(1, 21397126275), (3, 7132375425), (5, 4279425255), (7, 3056732325), (9, 2377458475), (15, 1426475085), (21, 1018910775), (25, 855885051), (35, 611346465), (45, 475491695), (63, 339636925), (75, 285295017), (105, 203782155), (175, 122269293), (225, 95098339), (239, 89527725), (315, 67927385), (525, 40756431), (717, 29842575), (1195, 17905545), (1575, 13585477), (1673, 12789675), (2151, 9947525), (3585, 5968515), (5019, 4263225), (5975, 3581109), (8365, 2557935), (10755, 1989505), (15057, 1421075), (17925, 1193703), (25095, 852645), (41825, 511587), (53775, 397901), (56843, 376425), (75285, 284215), (125475, 170529)]