21025116

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:193

約数の個数: 144

約数和(自身を含む): 66074400

約数和(自身を除く): 45049284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 29, 36, 42, 49, 54, 58, 63, 84, 87, 98, 108, 116, 126, 137, 147, 174, 189, 196, 203, 252, 261, 274, 294, 348, 378, 406, 411, 441, 522, 548, 588, 609, 756, 783, 812, 822, 882, 959, 1044, 1218, 1233, 1323, 1421, 1566, 1644, 1764, 1827, 1918, 2436, 2466, 2646, 2842, 2877, 3132, 3654, 3699, 3836, 3973, 4263, 4932, 5292, 5481, 5684, 5754, 6713, 7308, 7398, 7946, 8526, 8631, 10962, 11508, 11919, 12789, 13426, 14796, 15892, 17052, 17262, 20139, 21924, 23838, 25578, 25893, 26852, 27811, 34524, 35757, 38367, 40278, 47676, 51156, 51786, 55622, 60417, 71514, 76734, 80556, 83433, 103572, 107271, 111244, 120834, 143028, 153468, 166866, 181251, 194677, 214542, 241668, 250299, 333732, 362502, 389354, 429084, 500598, 584031, 725004, 750897, 778708, 1001196, 1168062, 1501794, 1752093, 2336124, 3003588, 3504186, 5256279, 7008372, 10512558, 21025116]

約数ペア:

[(1, 21025116), (2, 10512558), (3, 7008372), (4, 5256279), (6, 3504186), (7, 3003588), (9, 2336124), (12, 1752093), (14, 1501794), (18, 1168062), (21, 1001196), (27, 778708), (28, 750897), (29, 725004), (36, 584031), (42, 500598), (49, 429084), (54, 389354), (58, 362502), (63, 333732), (84, 250299), (87, 241668), (98, 214542), (108, 194677), (116, 181251), (126, 166866), (137, 153468), (147, 143028), (174, 120834), (189, 111244), (196, 107271), (203, 103572), (252, 83433), (261, 80556), (274, 76734), (294, 71514), (348, 60417), (378, 55622), (406, 51786), (411, 51156), (441, 47676), (522, 40278), (548, 38367), (588, 35757), (609, 34524), (756, 27811), (783, 26852), (812, 25893), (822, 25578), (882, 23838), (959, 21924), (1044, 20139), (1218, 17262), (1233, 17052), (1323, 15892), (1421, 14796), (1566, 13426), (1644, 12789), (1764, 11919), (1827, 11508), (1918, 10962), (2436, 8631), (2466, 8526), (2646, 7946), (2842, 7398), (2877, 7308), (3132, 6713), (3654, 5754), (3699, 5684), (3836, 5481), (3973, 5292), (4263, 4932)]