21648396

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3347}}^1$

素因数の和:3379

約数の個数: 72

約数和(自身を含む): 64120896

約数和(自身を除く): 42472500

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 49, 66, 77, 84, 98, 132, 147, 154, 196, 231, 294, 308, 462, 539, 588, 924, 1078, 1617, 2156, 3234, 3347, 6468, 6694, 10041, 13388, 20082, 23429, 36817, 40164, 46858, 70287, 73634, 93716, 110451, 140574, 147268, 164003, 220902, 257719, 281148, 328006, 441804, 492009, 515438, 656012, 773157, 984018, 1030876, 1546314, 1804033, 1968036, 3092628, 3608066, 5412099, 7216132, 10824198, 21648396]

約数ペア:

[(1, 21648396), (2, 10824198), (3, 7216132), (4, 5412099), (6, 3608066), (7, 3092628), (11, 1968036), (12, 1804033), (14, 1546314), (21, 1030876), (22, 984018), (28, 773157), (33, 656012), (42, 515438), (44, 492009), (49, 441804), (66, 328006), (77, 281148), (84, 257719), (98, 220902), (132, 164003), (147, 147268), (154, 140574), (196, 110451), (231, 93716), (294, 73634), (308, 70287), (462, 46858), (539, 40164), (588, 36817), (924, 23429), (1078, 20082), (1617, 13388), (2156, 10041), (3234, 6694), (3347, 6468)]