21645645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8963}}^1$

素因数の和:9001

約数の個数: 32

約数和(自身を含む): 41306112

約数和(自身を除く): 19660467

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8963, 26889, 44815, 62741, 134445, 188223, 206149, 313705, 618447, 941115, 1030745, 1443043, 3092235, 4329129, 7215215, 21645645]

約数ペア:

[(1, 21645645), (3, 7215215), (5, 4329129), (7, 3092235), (15, 1443043), (21, 1030745), (23, 941115), (35, 618447), (69, 313705), (105, 206149), (115, 188223), (161, 134445), (345, 62741), (483, 44815), (805, 26889), (2415, 8963)]