21393358

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 48

約数和(自身を含む): 40135680

約数和(自身を除く): 18742322

約数列:

[1, 2, 7, 14, 23, 29, 46, 58, 79, 158, 161, 203, 322, 406, 553, 667, 841, 1106, 1334, 1682, 1817, 2291, 3634, 4582, 4669, 5887, 9338, 11774, 12719, 16037, 19343, 25438, 32074, 38686, 52693, 66439, 105386, 132878, 135401, 270802, 368851, 465073, 737702, 930146, 1528097, 3056194, 10696679, 21393358]

約数ペア:

[(1, 21393358), (2, 10696679), (7, 3056194), (14, 1528097), (23, 930146), (29, 737702), (46, 465073), (58, 368851), (79, 270802), (158, 135401), (161, 132878), (203, 105386), (322, 66439), (406, 52693), (553, 38686), (667, 32074), (841, 25438), (1106, 19343), (1334, 16037), (1682, 12719), (1817, 11774), (2291, 9338), (3634, 5887), (4582, 4669)]