156637971

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 264775680

約数和(自身を除く): 108137709

約数列:

[1, 3, 7, 9, 21, 63, 101, 103, 239, 303, 309, 707, 717, 721, 909, 927, 1673, 2121, 2151, 2163, 5019, 6363, 6489, 10403, 15057, 24139, 24617, 31209, 72417, 72821, 73851, 93627, 168973, 172319, 217251, 218463, 221553, 506919, 516957, 655389, 1520757, 1550871, 2486317, 7458951, 17404219, 22376853, 52212657, 156637971]

約数ペア:

[(1, 156637971), (3, 52212657), (7, 22376853), (9, 17404219), (21, 7458951), (63, 2486317), (101, 1550871), (103, 1520757), (239, 655389), (303, 516957), (309, 506919), (707, 221553), (717, 218463), (721, 217251), (909, 172319), (927, 168973), (1673, 93627), (2121, 73851), (2151, 72821), (2163, 72417), (5019, 31209), (6363, 24617), (6489, 24139), (10403, 15057)]