217142007

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 304819200

約数和(自身を除く): 87677193

約数列:

[1, 3, 53, 59, 79, 159, 177, 237, 293, 879, 3127, 4187, 4661, 9381, 12561, 13983, 15529, 17287, 23147, 46587, 51861, 69441, 247033, 741099, 916211, 1226791, 1365673, 2748633, 3680373, 4097019, 72380669, 217142007]

約数ペア:

[(1, 217142007), (3, 72380669), (53, 4097019), (59, 3680373), (79, 2748633), (159, 1365673), (177, 1226791), (237, 916211), (293, 741099), (879, 247033), (3127, 69441), (4187, 51861), (4661, 46587), (9381, 23147), (12561, 17287), (13983, 15529)]