261472197

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{5657}}^1$

素因数の和:5769

約数の個数: 32

約数和(自身を含む): 417153024

約数和(自身を除く): 155680827

約数列:

[1, 3, 7, 21, 31, 71, 93, 213, 217, 497, 651, 1491, 2201, 5657, 6603, 15407, 16971, 39599, 46221, 118797, 175367, 401647, 526101, 1204941, 1227569, 2811529, 3682707, 8434587, 12451057, 37353171, 87157399, 261472197]

約数ペア:

[(1, 261472197), (3, 87157399), (7, 37353171), (21, 12451057), (31, 8434587), (71, 3682707), (93, 2811529), (213, 1227569), (217, 1204941), (497, 526101), (651, 401647), (1491, 175367), (2201, 118797), (5657, 46221), (6603, 39599), (15407, 16971)]