21640446

素因数分解:

$2^1\times 3^4\times {\mathrm{133583}}^1$

素因数の和:133597

約数の個数: 20

約数和(自身を含む): 48490992

約数和(自身を除く): 26850546

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 133583, 267166, 400749, 801498, 1202247, 2404494, 3606741, 7213482, 10820223, 21640446]

約数ペア:

[(1, 21640446), (2, 10820223), (3, 7213482), (6, 3606741), (9, 2404494), (18, 1202247), (27, 801498), (54, 400749), (81, 267166), (162, 133583)]