21909195

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6323}}^1$

素因数の和:6352

約数の個数: 48

約数和(自身を含む): 47354112

約数和(自身を除く): 25444917

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, 6323, 18969, 31615, 44261, 56907, 69553, 94845, 132783, 208659, 221305, 284535, 347765, 398349, 486871, 625977, 663915, 1043295, 1460613, 1991745, 2434355, 3129885, 4381839, 7303065, 21909195]

約数ペア:

[(1, 21909195), (3, 7303065), (5, 4381839), (7, 3129885), (9, 2434355), (11, 1991745), (15, 1460613), (21, 1043295), (33, 663915), (35, 625977), (45, 486871), (55, 398349), (63, 347765), (77, 284535), (99, 221305), (105, 208659), (165, 132783), (231, 94845), (315, 69553), (385, 56907), (495, 44261), (693, 31615), (1155, 18969), (3465, 6323)]