21425223

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{541}}^1$

素因数の和:894

約数の個数: 16

約数和(自身を含む): 29380736

約数和(自身を除く): 7955513

約数列:

[1, 3, 43, 129, 307, 541, 921, 1623, 13201, 23263, 39603, 69789, 166087, 498261, 7141741, 21425223]

約数ペア:

[(1, 21425223), (3, 7141741), (43, 498261), (129, 166087), (307, 69789), (541, 39603), (921, 23263), (1623, 13201)]