13021659

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1487}}^1$

素因数の和:1639

約数の個数: 24

約数和(自身を含む): 21665280

約数和(自身を除く): 8643621

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 1487, 2919, 4461, 8757, 10409, 13383, 31227, 93681, 206693, 620079, 1446851, 1860237, 4340553, 13021659]

約数ペア:

[(1, 13021659), (3, 4340553), (7, 1860237), (9, 1446851), (21, 620079), (63, 206693), (139, 93681), (417, 31227), (973, 13383), (1251, 10409), (1487, 8757), (2919, 4461)]