21958695

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:115

約数の個数: 96

約数和(自身を含む): 45287424

約数和(自身を除く): 23328729

約数列:

[1, 3, 5, 9, 11, 15, 27, 31, 33, 45, 53, 55, 81, 93, 99, 135, 155, 159, 165, 243, 265, 279, 297, 341, 405, 465, 477, 495, 583, 795, 837, 891, 1023, 1215, 1395, 1431, 1485, 1643, 1705, 1749, 2385, 2511, 2673, 2915, 3069, 4185, 4293, 4455, 4929, 5115, 5247, 7155, 7533, 8215, 8745, 9207, 12555, 12879, 13365, 14787, 15345, 15741, 18073, 21465, 24645, 26235, 27621, 37665, 44361, 46035, 47223, 54219, 64395, 73935, 78705, 82863, 90365, 133083, 138105, 141669, 162657, 221805, 236115, 271095, 399249, 414315, 487971, 665415, 708345, 813285, 1463913, 1996245, 2439855, 4391739, 7319565, 21958695]

約数ペア:

[(1, 21958695), (3, 7319565), (5, 4391739), (9, 2439855), (11, 1996245), (15, 1463913), (27, 813285), (31, 708345), (33, 665415), (45, 487971), (53, 414315), (55, 399249), (81, 271095), (93, 236115), (99, 221805), (135, 162657), (155, 141669), (159, 138105), (165, 133083), (243, 90365), (265, 82863), (279, 78705), (297, 73935), (341, 64395), (405, 54219), (465, 47223), (477, 46035), (495, 44361), (583, 37665), (795, 27621), (837, 26235), (891, 24645), (1023, 21465), (1215, 18073), (1395, 15741), (1431, 15345), (1485, 14787), (1643, 13365), (1705, 12879), (1749, 12555), (2385, 9207), (2511, 8745), (2673, 8215), (2915, 7533), (3069, 7155), (4185, 5247), (4293, 5115), (4455, 4929)]