21481096

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1553}}^1$

素因数の和:1598

約数の個数: 64

約数和(自身を含む): 52214400

約数和(自身を除く): 30733304

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 91, 104, 133, 152, 182, 247, 266, 364, 494, 532, 728, 988, 1064, 1553, 1729, 1976, 3106, 3458, 6212, 6916, 10871, 12424, 13832, 20189, 21742, 29507, 40378, 43484, 59014, 80756, 86968, 118028, 141323, 161512, 206549, 236056, 282646, 383591, 413098, 565292, 767182, 826196, 1130584, 1534364, 1652392, 2685137, 3068728, 5370274, 10740548, 21481096]

約数ペア:

[(1, 21481096), (2, 10740548), (4, 5370274), (7, 3068728), (8, 2685137), (13, 1652392), (14, 1534364), (19, 1130584), (26, 826196), (28, 767182), (38, 565292), (52, 413098), (56, 383591), (76, 282646), (91, 236056), (104, 206549), (133, 161512), (152, 141323), (182, 118028), (247, 86968), (266, 80756), (364, 59014), (494, 43484), (532, 40378), (728, 29507), (988, 21742), (1064, 20189), (1553, 13832), (1729, 12424), (1976, 10871), (3106, 6916), (3458, 6212)]