21064654

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{42641}}^1$

素因数の和:42675

約数の個数: 16

約数和(自身を含む): 35819280

約数和(自身を除く): 14754626

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 42641, 85282, 554333, 810179, 1108666, 1620358, 10532327, 21064654]

約数ペア:

[(1, 21064654), (2, 10532327), (13, 1620358), (19, 1108666), (26, 810179), (38, 554333), (247, 85282), (494, 42641)]