21635404

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10883}}^1$

素因数の和:10965

約数の個数: 24

約数和(自身を含む): 43884288

約数和(自身を除く): 22248884

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10883, 21766, 43532, 76181, 152362, 304724, 772693, 1545386, 3090772, 5408851, 10817702, 21635404]

約数ペア:

[(1, 21635404), (2, 10817702), (4, 5408851), (7, 3090772), (14, 1545386), (28, 772693), (71, 304724), (142, 152362), (284, 76181), (497, 43532), (994, 21766), (1988, 10883)]