21131135

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 27980640

約数和(自身を除く): 6849505

約数列:

[1, 5, 19, 23, 95, 115, 361, 437, 509, 1805, 2185, 2545, 8303, 9671, 11707, 41515, 48355, 58535, 183749, 222433, 918745, 1112165, 4226227, 21131135]

約数ペア:

[(1, 21131135), (5, 4226227), (19, 1112165), (23, 918745), (95, 222433), (115, 183749), (361, 58535), (437, 48355), (509, 41515), (1805, 11707), (2185, 9671), (2545, 8303)]