18261831

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1237}}^1$

素因数の和:1303

約数の個数: 32

約数和(自身を含む): 30108160

約数和(自身を除く): 11846329

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 1237, 2109, 3711, 4921, 8659, 14763, 23503, 25977, 45769, 70509, 137307, 164521, 320383, 493563, 869611, 961149, 2608833, 6087277, 18261831]

約数ペア:

[(1, 18261831), (3, 6087277), (7, 2608833), (19, 961149), (21, 869611), (37, 493563), (57, 320383), (111, 164521), (133, 137307), (259, 70509), (399, 45769), (703, 25977), (777, 23503), (1237, 14763), (2109, 8659), (3711, 4921)]