20978244

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{27749}}^1$

素因数の和:27769

約数の個数: 48

約数和(自身を含む): 62160000

約数和(自身を除く): 41181756

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 27749, 55498, 83247, 110996, 166494, 194243, 249741, 332988, 388486, 499482, 582729, 749223, 776972, 998964, 1165458, 1498446, 1748187, 2330916, 2996892, 3496374, 5244561, 6992748, 10489122, 20978244]

約数ペア:

[(1, 20978244), (2, 10489122), (3, 6992748), (4, 5244561), (6, 3496374), (7, 2996892), (9, 2330916), (12, 1748187), (14, 1498446), (18, 1165458), (21, 998964), (27, 776972), (28, 749223), (36, 582729), (42, 499482), (54, 388486), (63, 332988), (84, 249741), (108, 194243), (126, 166494), (189, 110996), (252, 83247), (378, 55498), (756, 27749)]