216902879

素因数分解:

${\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 238384080

約数和(自身を除く): 21481201

約数列:

[1, 19, 43, 89, 157, 361, 817, 1691, 2983, 3827, 6751, 13973, 15523, 32129, 56677, 72713, 128269, 265487, 600839, 1381547, 2437111, 5044253, 11415941, 216902879]

約数ペア:

[(1, 216902879), (19, 11415941), (43, 5044253), (89, 2437111), (157, 1381547), (361, 600839), (817, 265487), (1691, 128269), (2983, 72713), (3827, 56677), (6751, 32129), (13973, 15523)]