21641565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4231}}^1$

素因数の和:4281

約数の個数: 32

約数和(自身を含む): 39002112

約数和(自身を除く): 17360547

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4231, 5115, 12693, 21155, 46541, 63465, 131161, 139623, 232705, 393483, 655805, 698115, 1442771, 1967415, 4328313, 7213855, 21641565]

約数ペア:

[(1, 21641565), (3, 7213855), (5, 4328313), (11, 1967415), (15, 1442771), (31, 698115), (33, 655805), (55, 393483), (93, 232705), (155, 139623), (165, 131161), (341, 63465), (465, 46541), (1023, 21155), (1705, 12693), (4231, 5115)]