19445979

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{863}}^1$

素因数の和:939

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 12072741

約数列:

[1, 3, 7, 21, 29, 37, 87, 111, 203, 259, 609, 777, 863, 1073, 2589, 3219, 6041, 7511, 18123, 22533, 25027, 31931, 75081, 95793, 175189, 223517, 525567, 670551, 925999, 2777997, 6481993, 19445979]

約数ペア:

[(1, 19445979), (3, 6481993), (7, 2777997), (21, 925999), (29, 670551), (37, 525567), (87, 223517), (111, 175189), (203, 95793), (259, 75081), (609, 31931), (777, 25027), (863, 22533), (1073, 18123), (2589, 7511), (3219, 6041)]