21195735

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6761}}^1$

素因数の和:6799

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 17753385

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6761, 20283, 33805, 74371, 101415, 128459, 223113, 371855, 385377, 642295, 1115565, 1413049, 1926885, 4239147, 7065245, 21195735]

約数ペア:

[(1, 21195735), (3, 7065245), (5, 4239147), (11, 1926885), (15, 1413049), (19, 1115565), (33, 642295), (55, 385377), (57, 371855), (95, 223113), (165, 128459), (209, 101415), (285, 74371), (627, 33805), (1045, 20283), (3135, 6761)]