217819551

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 307929600

約数和(自身を除く): 90110049

約数列:

[1, 3, 29, 71, 87, 179, 197, 213, 537, 591, 2059, 5191, 5713, 6177, 12709, 13987, 15573, 17139, 35263, 38127, 41961, 105789, 368561, 405623, 1022627, 1105683, 1216869, 2503673, 3067881, 7511019, 72606517, 217819551]

約数ペア:

[(1, 217819551), (3, 72606517), (29, 7511019), (71, 3067881), (87, 2503673), (179, 1216869), (197, 1105683), (213, 1022627), (537, 405623), (591, 368561), (2059, 105789), (5191, 41961), (5713, 38127), (6177, 35263), (12709, 17139), (13987, 15573)]