20865978

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{55201}}^1$

素因数の和:55219

約数の個数: 32

約数和(自身を含む): 52993920

約数和(自身を除く): 32127942

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 55201, 110402, 165603, 331206, 386407, 496809, 772814, 993618, 1159221, 1490427, 2318442, 2980854, 3477663, 6955326, 10432989, 20865978]

約数ペア:

[(1, 20865978), (2, 10432989), (3, 6955326), (6, 3477663), (7, 2980854), (9, 2318442), (14, 1490427), (18, 1159221), (21, 993618), (27, 772814), (42, 496809), (54, 386407), (63, 331206), (126, 165603), (189, 110402), (378, 55201)]