21997542

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3823}}^1$

素因数の和:3972

約数の個数: 32

約数和(自身を含む): 50660352

約数和(自身を除く): 28662810

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 274, 411, 822, 959, 1918, 2877, 3823, 5754, 7646, 11469, 22938, 26761, 53522, 80283, 160566, 523751, 1047502, 1571253, 3142506, 3666257, 7332514, 10998771, 21997542]

約数ペア:

[(1, 21997542), (2, 10998771), (3, 7332514), (6, 3666257), (7, 3142506), (14, 1571253), (21, 1047502), (42, 523751), (137, 160566), (274, 80283), (411, 53522), (822, 26761), (959, 22938), (1918, 11469), (2877, 7646), (3823, 5754)]