21799215

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5443}}^1$

素因数の和:5543

約数の個数: 24

約数和(自身を含む): 38216880

約数和(自身を除く): 16417665

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 5443, 16329, 27215, 48987, 81645, 244935, 484427, 1453281, 2422135, 4359843, 7266405, 21799215]

約数ペア:

[(1, 21799215), (3, 7266405), (5, 4359843), (9, 2422135), (15, 1453281), (45, 484427), (89, 244935), (267, 81645), (445, 48987), (801, 27215), (1335, 16329), (4005, 5443)]