867187797

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{21101}}^1$

素因数の和:21233

約数の個数: 32

約数和(自身を含む): 1404549120

約数和(自身を除く): 537361323

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 309, 399, 721, 1957, 2163, 5871, 13699, 21101, 41097, 63303, 147707, 400919, 443121, 1202757, 2173403, 2806433, 6520209, 8419299, 15213821, 41294657, 45641463, 123883971, 289062599, 867187797]

約数ペア:

[(1, 867187797), (3, 289062599), (7, 123883971), (19, 45641463), (21, 41294657), (57, 15213821), (103, 8419299), (133, 6520209), (309, 2806433), (399, 2173403), (721, 1202757), (1957, 443121), (2163, 400919), (5871, 147707), (13699, 63303), (21101, 41097)]