21659118

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3911}}^1$

素因数の和:4000

約数の個数: 32

約数和(自身を含む): 47319552

約数和(自身を除く): 25660434

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 3911, 5538, 7822, 11733, 23466, 50843, 101686, 152529, 277681, 305058, 555362, 833043, 1666086, 3609853, 7219706, 10829559, 21659118]

約数ペア:

[(1, 21659118), (2, 10829559), (3, 7219706), (6, 3609853), (13, 1666086), (26, 833043), (39, 555362), (71, 305058), (78, 277681), (142, 152529), (213, 101686), (426, 50843), (923, 23466), (1846, 11733), (2769, 7822), (3911, 5538)]