21558060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{523}}^1$

素因数の和:767

約数の個数: 72

約数和(自身を含む): 65803920

約数和(自身を除く): 44245860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 523, 687, 916, 1046, 1145, 1374, 1569, 2061, 2092, 2290, 2615, 2748, 3138, 3435, 4122, 4580, 4707, 5230, 6276, 6870, 7845, 8244, 9414, 10305, 10460, 13740, 15690, 18828, 20610, 23535, 31380, 41220, 47070, 94140, 119767, 239534, 359301, 479068, 598835, 718602, 1077903, 1197670, 1437204, 1796505, 2155806, 2395340, 3593010, 4311612, 5389515, 7186020, 10779030, 21558060]

約数ペア:

[(1, 21558060), (2, 10779030), (3, 7186020), (4, 5389515), (5, 4311612), (6, 3593010), (9, 2395340), (10, 2155806), (12, 1796505), (15, 1437204), (18, 1197670), (20, 1077903), (30, 718602), (36, 598835), (45, 479068), (60, 359301), (90, 239534), (180, 119767), (229, 94140), (458, 47070), (523, 41220), (687, 31380), (916, 23535), (1046, 20610), (1145, 18828), (1374, 15690), (1569, 13740), (2061, 10460), (2092, 10305), (2290, 9414), (2615, 8244), (2748, 7845), (3138, 6870), (3435, 6276), (4122, 5230), (4580, 4707)]