20921856395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{63389}}^1$

素因数の和:63775

約数の個数: 32

約数和(自身を含む): 29082317760

約数和(自身を除く): 8160461365

約数列:

[1, 5, 11, 17, 55, 85, 187, 353, 935, 1765, 3883, 6001, 19415, 30005, 63389, 66011, 316945, 330055, 697279, 1077613, 3486395, 5388065, 11853743, 22376317, 59268715, 111881585, 246139487, 380397389, 1230697435, 1901986945, 4184371279, 20921856395]

約数ペア:

[(1, 20921856395), (5, 4184371279), (11, 1901986945), (17, 1230697435), (55, 380397389), (85, 246139487), (187, 111881585), (353, 59268715), (935, 22376317), (1765, 11853743), (3883, 5388065), (6001, 3486395), (19415, 1077613), (30005, 697279), (63389, 330055), (66011, 316945)]