21438795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1069}}^1$

素因数の和:1275

約数の個数: 32

約数和(自身を含む): 39444480

約数和(自身を除く): 18005685

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 955, 1069, 1337, 2865, 3207, 4011, 5345, 6685, 7483, 16035, 20055, 22449, 37415, 112245, 204179, 612537, 1020895, 1429253, 3062685, 4287759, 7146265, 21438795]

約数ペア:

[(1, 21438795), (3, 7146265), (5, 4287759), (7, 3062685), (15, 1429253), (21, 1020895), (35, 612537), (105, 204179), (191, 112245), (573, 37415), (955, 22449), (1069, 20055), (1337, 16035), (2865, 7483), (3207, 6685), (4011, 5345)]