21674744

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1567}}^1$

素因数の和:1612

約数の個数: 64

約数和(自身を含む): 52684800

約数和(自身を除く): 31010056

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, 1567, 1729, 1976, 3134, 3458, 6268, 6916, 10969, 12536, 13832, 20371, 21938, 29773, 40742, 43876, 59546, 81484, 87752, 119092, 142597, 162968, 208411, 238184, 285194, 387049, 416822, 570388, 774098, 833644, 1140776, 1548196, 1667288, 2709343, 3096392, 5418686, 10837372, 21674744]

約数ペア:

[(1, 21674744), (2, 10837372), (4, 5418686), (7, 3096392), (8, 2709343), (13, 1667288), (14, 1548196), (19, 1140776), (26, 833644), (28, 774098), (38, 570388), (52, 416822), (56, 387049), (76, 285194), (91, 238184), (104, 208411), (133, 162968), (152, 142597), (182, 119092), (247, 87752), (266, 81484), (364, 59546), (494, 43876), (532, 40742), (728, 29773), (988, 21938), (1064, 20371), (1567, 13832), (1729, 12536), (1976, 10969), (3134, 6916), (3458, 6268)]