21589960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{929}}^1$

素因数の和:1030

約数の個数: 64

約数和(自身を含む): 56246400

約数和(自身を除く): 34656440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 83, 140, 166, 280, 332, 415, 581, 664, 830, 929, 1162, 1660, 1858, 2324, 2905, 3320, 3716, 4645, 4648, 5810, 6503, 7432, 9290, 11620, 13006, 18580, 23240, 26012, 32515, 37160, 52024, 65030, 77107, 130060, 154214, 260120, 308428, 385535, 539749, 616856, 771070, 1079498, 1542140, 2158996, 2698745, 3084280, 4317992, 5397490, 10794980, 21589960]

約数ペア:

[(1, 21589960), (2, 10794980), (4, 5397490), (5, 4317992), (7, 3084280), (8, 2698745), (10, 2158996), (14, 1542140), (20, 1079498), (28, 771070), (35, 616856), (40, 539749), (56, 385535), (70, 308428), (83, 260120), (140, 154214), (166, 130060), (280, 77107), (332, 65030), (415, 52024), (581, 37160), (664, 32515), (830, 26012), (929, 23240), (1162, 18580), (1660, 13006), (1858, 11620), (2324, 9290), (2905, 7432), (3320, 6503), (3716, 5810), (4645, 4648)]