28397817

素因数分解:

$3^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1549}}^1$

素因数の和:1662

約数の個数: 32

約数和(自身を含む): 48608000

約数和(自身を除く): 20210183

約数列:

[1, 3, 7, 9, 21, 27, 63, 97, 189, 291, 679, 873, 1549, 2037, 2619, 4647, 6111, 10843, 13941, 18333, 32529, 41823, 97587, 150253, 292761, 450759, 1051771, 1352277, 3155313, 4056831, 9465939, 28397817]

約数ペア:

[(1, 28397817), (3, 9465939), (7, 4056831), (9, 3155313), (21, 1352277), (27, 1051771), (63, 450759), (97, 292761), (189, 150253), (291, 97587), (679, 41823), (873, 32529), (1549, 18333), (2037, 13941), (2619, 10843), (4647, 6111)]