201121515

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{212827}}^1$

素因数の和:212848

約数の個数: 32

約数和(自身を含む): 408629760

約数和(自身を除く): 207508245

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 212827, 638481, 1064135, 1489789, 1915443, 3192405, 4469367, 5746329, 7448945, 9577215, 13408101, 22346835, 28731645, 40224303, 67040505, 201121515]

約数ペア:

[(1, 201121515), (3, 67040505), (5, 40224303), (7, 28731645), (9, 22346835), (15, 13408101), (21, 9577215), (27, 7448945), (35, 5746329), (45, 4469367), (63, 3192405), (105, 1915443), (135, 1489789), (189, 1064135), (315, 638481), (945, 212827)]