207789981

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{6421}}^1$

素因数の和:6521

約数の個数: 32

約数和(自身を含む): 335382528

約数和(自身を除く): 127592547

約数列:

[1, 3, 7, 21, 23, 67, 69, 161, 201, 469, 483, 1407, 1541, 4623, 6421, 10787, 19263, 32361, 44947, 134841, 147683, 430207, 443049, 1033781, 1290621, 3011449, 3101343, 9034347, 9894761, 29684283, 69263327, 207789981]

約数ペア:

[(1, 207789981), (3, 69263327), (7, 29684283), (21, 9894761), (23, 9034347), (67, 3101343), (69, 3011449), (161, 1290621), (201, 1033781), (469, 443049), (483, 430207), (1407, 147683), (1541, 134841), (4623, 44947), (6421, 32361), (10787, 19263)]