21356551620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3827339}}^1$

素因数の和:3827385

約数の個数: 72

約数和(自身を含む): 66871284480

約数和(自身を除く): 45514732860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 3827339, 7654678, 11482017, 15309356, 19136695, 22964034, 34446051, 38273390, 45928068, 57410085, 68892102, 76546780, 114820170, 118647509, 137784204, 172230255, 229640340, 237295018, 344460510, 355942527, 474590036, 593237545, 688921020, 711885054, 1067827581, 1186475090, 1423770108, 1779712635, 2135655162, 2372950180, 3559425270, 4271310324, 5339137905, 7118850540, 10678275810, 21356551620]

約数ペア:

[(1, 21356551620), (2, 10678275810), (3, 7118850540), (4, 5339137905), (5, 4271310324), (6, 3559425270), (9, 2372950180), (10, 2135655162), (12, 1779712635), (15, 1423770108), (18, 1186475090), (20, 1067827581), (30, 711885054), (31, 688921020), (36, 593237545), (45, 474590036), (60, 355942527), (62, 344460510), (90, 237295018), (93, 229640340), (124, 172230255), (155, 137784204), (180, 118647509), (186, 114820170), (279, 76546780), (310, 68892102), (372, 57410085), (465, 45928068), (558, 38273390), (620, 34446051), (930, 22964034), (1116, 19136695), (1395, 15309356), (1860, 11482017), (2790, 7654678), (5580, 3827339)]