21374658

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 29428542

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 83, 114, 166, 171, 249, 251, 342, 498, 502, 513, 747, 753, 1026, 1494, 1506, 1577, 2241, 2259, 3154, 4482, 4518, 4731, 4769, 6777, 9462, 9538, 13554, 14193, 14307, 20833, 28386, 28614, 41666, 42579, 42921, 62499, 85158, 85842, 124998, 128763, 187497, 257526, 374994, 395827, 562491, 791654, 1124982, 1187481, 2374962, 3562443, 7124886, 10687329, 21374658]

約数ペア:

[(1, 21374658), (2, 10687329), (3, 7124886), (6, 3562443), (9, 2374962), (18, 1187481), (19, 1124982), (27, 791654), (38, 562491), (54, 395827), (57, 374994), (83, 257526), (114, 187497), (166, 128763), (171, 124998), (249, 85842), (251, 85158), (342, 62499), (498, 42921), (502, 42579), (513, 41666), (747, 28614), (753, 28386), (1026, 20833), (1494, 14307), (1506, 14193), (1577, 13554), (2241, 9538), (2259, 9462), (3154, 6777), (4482, 4769), (4518, 4731)]