21891914

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{631}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 16331446

約数列:

[1, 2, 11, 19, 22, 38, 83, 166, 209, 418, 631, 913, 1262, 1577, 1826, 3154, 6941, 11989, 13882, 17347, 23978, 34694, 52373, 104746, 131879, 263758, 576103, 995087, 1152206, 1990174, 10945957, 21891914]

約数ペア:

[(1, 21891914), (2, 10945957), (11, 1990174), (19, 1152206), (22, 995087), (38, 576103), (83, 263758), (166, 131879), (209, 104746), (418, 52373), (631, 34694), (913, 23978), (1262, 17347), (1577, 13882), (1826, 11989), (3154, 6941)]