21567975

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2011}}^1$

素因数の和:2048

約数の個数: 48

約数和(自身を含む): 41913984

約数和(自身を除く): 20346009

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 143, 165, 195, 275, 325, 429, 715, 825, 975, 2011, 2145, 3575, 6033, 10055, 10725, 22121, 26143, 30165, 50275, 66363, 78429, 110605, 130715, 150825, 287573, 331815, 392145, 553025, 653575, 862719, 1437865, 1659075, 1960725, 4313595, 7189325, 21567975]

約数ペア:

[(1, 21567975), (3, 7189325), (5, 4313595), (11, 1960725), (13, 1659075), (15, 1437865), (25, 862719), (33, 653575), (39, 553025), (55, 392145), (65, 331815), (75, 287573), (143, 150825), (165, 130715), (195, 110605), (275, 78429), (325, 66363), (429, 50275), (715, 30165), (825, 26143), (975, 22121), (2011, 10725), (2145, 10055), (3575, 6033)]