21522879

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5099}}^1$

素因数の和:5179

約数の個数: 24

約数和(自身を含む): 36067200

約数和(自身を除く): 14544321

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 5099, 15297, 35693, 45891, 107079, 321237, 341633, 1024899, 2391431, 3074697, 7174293, 21522879]

約数ペア:

[(1, 21522879), (3, 7174293), (7, 3074697), (9, 2391431), (21, 1024899), (63, 341633), (67, 321237), (201, 107079), (469, 45891), (603, 35693), (1407, 15297), (4221, 5099)]