199980417

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{461}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 336232512

約数和(自身を除く): 136252095

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 227, 273, 461, 637, 681, 1383, 1589, 1911, 2951, 3227, 4767, 5993, 8853, 9681, 11123, 17979, 20657, 22589, 33369, 41951, 61971, 67767, 104647, 125853, 144599, 293657, 313941, 433797, 732529, 880971, 1360411, 2197587, 4081233, 5127703, 9522877, 15383109, 28568631, 66660139, 199980417]

約数ペア:

[(1, 199980417), (3, 66660139), (7, 28568631), (13, 15383109), (21, 9522877), (39, 5127703), (49, 4081233), (91, 2197587), (147, 1360411), (227, 880971), (273, 732529), (461, 433797), (637, 313941), (681, 293657), (1383, 144599), (1589, 125853), (1911, 104647), (2951, 67767), (3227, 61971), (4767, 41951), (5993, 33369), (8853, 22589), (9681, 20657), (11123, 17979)]