20359917

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1601}}^1$

素因数の和:1770

約数の個数: 20

約数和(自身を含む): 30627036

約数和(自身を除く): 10267119

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 1601, 4239, 4803, 12717, 14409, 43227, 129681, 251357, 754071, 2262213, 6786639, 20359917]

約数ペア:

[(1, 20359917), (3, 6786639), (9, 2262213), (27, 754071), (81, 251357), (157, 129681), (471, 43227), (1413, 14409), (1601, 12717), (4239, 4803)]