21029505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5413}}^1$

素因数の和:5465

約数の個数: 32

約数和(自身を含む): 39500544

約数和(自身を除く): 18471039

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 5413, 16239, 27065, 37891, 81195, 113673, 189455, 200281, 568365, 600843, 1001405, 1401967, 3004215, 4205901, 7009835, 21029505]

約数ペア:

[(1, 21029505), (3, 7009835), (5, 4205901), (7, 3004215), (15, 1401967), (21, 1001405), (35, 600843), (37, 568365), (105, 200281), (111, 189455), (185, 113673), (259, 81195), (555, 37891), (777, 27065), (1295, 16239), (3885, 5413)]