21097962

素因数分解:

$2^1\times 3^3\times {\mathrm{390703}}^1$

素因数の和:390714

約数の個数: 16

約数和(自身を含む): 46884480

約数和(自身を除く): 25786518

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390703, 781406, 1172109, 2344218, 3516327, 7032654, 10548981, 21097962]

約数ペア:

[(1, 21097962), (2, 10548981), (3, 7032654), (6, 3516327), (9, 2344218), (18, 1172109), (27, 781406), (54, 390703)]