21454914

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{467}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 28864446

約数列:

[1, 2, 3, 6, 13, 19, 26, 31, 38, 39, 57, 62, 78, 93, 114, 186, 247, 403, 467, 494, 589, 741, 806, 934, 1178, 1209, 1401, 1482, 1767, 2418, 2802, 3534, 6071, 7657, 8873, 12142, 14477, 15314, 17746, 18213, 22971, 26619, 28954, 36426, 43431, 45942, 53238, 86862, 115349, 188201, 230698, 275063, 346047, 376402, 550126, 564603, 692094, 825189, 1129206, 1650378, 3575819, 7151638, 10727457, 21454914]

約数ペア:

[(1, 21454914), (2, 10727457), (3, 7151638), (6, 3575819), (13, 1650378), (19, 1129206), (26, 825189), (31, 692094), (38, 564603), (39, 550126), (57, 376402), (62, 346047), (78, 275063), (93, 230698), (114, 188201), (186, 115349), (247, 86862), (403, 53238), (467, 45942), (494, 43431), (589, 36426), (741, 28954), (806, 26619), (934, 22971), (1178, 18213), (1209, 17746), (1401, 15314), (1482, 14477), (1767, 12142), (2418, 8873), (2802, 7657), (3534, 6071)]