28837991

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1283}}^1$

素因数の和:1335

約数の個数: 24

約数和(自身を含む): 37595520

約数和(自身を除く): 8757529

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 1183, 1283, 1729, 3211, 8981, 16679, 22477, 24377, 116753, 170639, 216827, 316901, 1517789, 2218307, 4119713, 28837991]

約数ペア:

[(1, 28837991), (7, 4119713), (13, 2218307), (19, 1517789), (91, 316901), (133, 216827), (169, 170639), (247, 116753), (1183, 24377), (1283, 22477), (1729, 16679), (3211, 8981)]