21305655195

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{690509}}^1$

素因数の和:690556

約数の個数: 48

約数和(自身を含む): 39673942560

約数和(自身を除く): 18368287365

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 121, 165, 187, 255, 363, 561, 605, 935, 1815, 2057, 2805, 6171, 10285, 30855, 690509, 2071527, 3452545, 7595599, 10357635, 11738653, 22786797, 35215959, 37977995, 58693265, 83551589, 113933985, 129125183, 176079795, 250654767, 387375549, 417757945, 645625915, 1253273835, 1420377013, 1936877745, 4261131039, 7101885065, 21305655195]

約数ペア:

[(1, 21305655195), (3, 7101885065), (5, 4261131039), (11, 1936877745), (15, 1420377013), (17, 1253273835), (33, 645625915), (51, 417757945), (55, 387375549), (85, 250654767), (121, 176079795), (165, 129125183), (187, 113933985), (255, 83551589), (363, 58693265), (561, 37977995), (605, 35215959), (935, 22786797), (1815, 11738653), (2057, 10357635), (2805, 7595599), (6171, 3452545), (10285, 2071527), (30855, 690509)]