21541676

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1187}}^1$

素因数の和:1553

約数の個数: 24

約数和(自身を含む): 40748400

約数和(自身を除く): 19206724

約数列:

[1, 2, 4, 13, 26, 52, 349, 698, 1187, 1396, 2374, 4537, 4748, 9074, 15431, 18148, 30862, 61724, 414263, 828526, 1657052, 5385419, 10770838, 21541676]

約数ペア:

[(1, 21541676), (2, 10770838), (4, 5385419), (13, 1657052), (26, 828526), (52, 414263), (349, 61724), (698, 30862), (1187, 18148), (1396, 15431), (2374, 9074), (4537, 4748)]