21938560

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:168

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 39751040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 64, 70, 80, 83, 112, 118, 128, 140, 160, 166, 224, 236, 280, 295, 320, 332, 413, 415, 448, 472, 560, 581, 590, 640, 664, 826, 830, 896, 944, 1120, 1162, 1180, 1328, 1652, 1660, 1888, 2065, 2240, 2324, 2360, 2656, 2905, 3304, 3320, 3776, 4130, 4480, 4648, 4720, 4897, 5312, 5810, 6608, 6640, 7552, 8260, 9296, 9440, 9794, 10624, 11620, 13216, 13280, 16520, 18592, 18880, 19588, 23240, 24485, 26432, 26560, 33040, 34279, 37184, 37760, 39176, 46480, 48970, 52864, 53120, 66080, 68558, 74368, 78352, 92960, 97940, 132160, 137116, 156704, 171395, 185920, 195880, 264320, 274232, 313408, 342790, 371840, 391760, 548464, 626816, 685580, 783520, 1096928, 1371160, 1567040, 2193856, 2742320, 3134080, 4387712, 5484640, 10969280, 21938560]

約数ペア:

[(1, 21938560), (2, 10969280), (4, 5484640), (5, 4387712), (7, 3134080), (8, 2742320), (10, 2193856), (14, 1567040), (16, 1371160), (20, 1096928), (28, 783520), (32, 685580), (35, 626816), (40, 548464), (56, 391760), (59, 371840), (64, 342790), (70, 313408), (80, 274232), (83, 264320), (112, 195880), (118, 185920), (128, 171395), (140, 156704), (160, 137116), (166, 132160), (224, 97940), (236, 92960), (280, 78352), (295, 74368), (320, 68558), (332, 66080), (413, 53120), (415, 52864), (448, 48970), (472, 46480), (560, 39176), (581, 37760), (590, 37184), (640, 34279), (664, 33040), (826, 26560), (830, 26432), (896, 24485), (944, 23240), (1120, 19588), (1162, 18880), (1180, 18592), (1328, 16520), (1652, 13280), (1660, 13216), (1888, 11620), (2065, 10624), (2240, 9794), (2324, 9440), (2360, 9296), (2656, 8260), (2905, 7552), (3304, 6640), (3320, 6608), (3776, 5810), (4130, 5312), (4480, 4897), (4648, 4720)]