21313215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6151}}^1$

素因数の和:6180

約数の個数: 48

約数和(自身を含む): 46066176

約数和(自身を除く): 24752961

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 6151, 18453, 30755, 43057, 55359, 67661, 92265, 129171, 202983, 215285, 276795, 338305, 387513, 473627, 608949, 645855, 1014915, 1420881, 1937565, 2368135, 3044745, 4262643, 7104405, 21313215]

約数ペア:

[(1, 21313215), (3, 7104405), (5, 4262643), (7, 3044745), (9, 2368135), (11, 1937565), (15, 1420881), (21, 1014915), (33, 645855), (35, 608949), (45, 473627), (55, 387513), (63, 338305), (77, 276795), (99, 215285), (105, 202983), (165, 129171), (231, 92265), (315, 67661), (385, 55359), (495, 43057), (693, 30755), (1155, 18453), (3465, 6151)]