21370307

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3919}}^1$

素因数の和:3986

約数の個数: 16

約数和(自身を含む): 26342400

約数和(自身を除く): 4972093

約数列:

[1, 7, 19, 41, 133, 287, 779, 3919, 5453, 27433, 74461, 160679, 521227, 1124753, 3052901, 21370307]

約数ペア:

[(1, 21370307), (7, 3052901), (19, 1124753), (41, 521227), (133, 160679), (287, 74461), (779, 27433), (3919, 5453)]