21299640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 69284160

約数和(自身を除く): 47984520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 53, 60, 68, 85, 102, 106, 120, 136, 159, 170, 197, 204, 212, 255, 265, 318, 340, 394, 408, 424, 510, 530, 591, 636, 680, 788, 795, 901, 985, 1020, 1060, 1182, 1272, 1576, 1590, 1802, 1970, 2040, 2120, 2364, 2703, 2955, 3180, 3349, 3604, 3940, 4505, 4728, 5406, 5910, 6360, 6698, 7208, 7880, 9010, 10047, 10441, 10812, 11820, 13396, 13515, 16745, 18020, 20094, 20882, 21624, 23640, 26792, 27030, 31323, 33490, 36040, 40188, 41764, 50235, 52205, 54060, 62646, 66980, 80376, 83528, 100470, 104410, 108120, 125292, 133960, 156615, 177497, 200940, 208820, 250584, 313230, 354994, 401880, 417640, 532491, 626460, 709988, 887485, 1064982, 1252920, 1419976, 1774970, 2129964, 2662455, 3549940, 4259928, 5324910, 7099880, 10649820, 21299640]

約数ペア:

[(1, 21299640), (2, 10649820), (3, 7099880), (4, 5324910), (5, 4259928), (6, 3549940), (8, 2662455), (10, 2129964), (12, 1774970), (15, 1419976), (17, 1252920), (20, 1064982), (24, 887485), (30, 709988), (34, 626460), (40, 532491), (51, 417640), (53, 401880), (60, 354994), (68, 313230), (85, 250584), (102, 208820), (106, 200940), (120, 177497), (136, 156615), (159, 133960), (170, 125292), (197, 108120), (204, 104410), (212, 100470), (255, 83528), (265, 80376), (318, 66980), (340, 62646), (394, 54060), (408, 52205), (424, 50235), (510, 41764), (530, 40188), (591, 36040), (636, 33490), (680, 31323), (788, 27030), (795, 26792), (901, 23640), (985, 21624), (1020, 20882), (1060, 20094), (1182, 18020), (1272, 16745), (1576, 13515), (1590, 13396), (1802, 11820), (1970, 10812), (2040, 10441), (2120, 10047), (2364, 9010), (2703, 7880), (2955, 7208), (3180, 6698), (3349, 6360), (3604, 5910), (3940, 5406), (4505, 4728)]