21447954

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{727}}^1$

素因数の和:895

約数の個数: 48

約数和(自身を含む): 51105600

約数和(自身を除く): 29657646

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 149, 198, 298, 447, 727, 894, 1341, 1454, 1639, 2181, 2682, 3278, 4362, 4917, 6543, 7997, 9834, 13086, 14751, 15994, 23991, 29502, 47982, 71973, 108323, 143946, 216646, 324969, 649938, 974907, 1191553, 1949814, 2383106, 3574659, 7149318, 10723977, 21447954]

約数ペア:

[(1, 21447954), (2, 10723977), (3, 7149318), (6, 3574659), (9, 2383106), (11, 1949814), (18, 1191553), (22, 974907), (33, 649938), (66, 324969), (99, 216646), (149, 143946), (198, 108323), (298, 71973), (447, 47982), (727, 29502), (894, 23991), (1341, 15994), (1454, 14751), (1639, 13086), (2181, 9834), (2682, 7997), (3278, 6543), (4362, 4917)]