19420641

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12619}}^1$

素因数の和:12650

約数の個数: 20

約数和(自身を含む): 30540400

約数和(自身を除く): 11119759

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12619, 37857, 113571, 239761, 340713, 719283, 1022139, 2157849, 6473547, 19420641]

約数ペア:

[(1, 19420641), (3, 6473547), (9, 2157849), (19, 1022139), (27, 719283), (57, 340713), (81, 239761), (171, 113571), (513, 37857), (1539, 12619)]