21461013

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17929}}^1$

素因数の和:17961

約数の個数: 24

約数和(自身を含む): 37294400

約数和(自身を除く): 15833387

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17929, 53787, 125503, 161361, 340651, 376509, 1021953, 1129527, 2384557, 3065859, 7153671, 21461013]

約数ペア:

[(1, 21461013), (3, 7153671), (7, 3065859), (9, 2384557), (19, 1129527), (21, 1021953), (57, 376509), (63, 340651), (133, 161361), (171, 125503), (399, 53787), (1197, 17929)]