20697574

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:412

約数の個数: 24

約数和(自身を含む): 33192720

約数和(自身を除く): 12495146

約数列:

[1, 2, 19, 38, 109, 218, 263, 361, 526, 722, 2071, 4142, 4997, 9994, 28667, 39349, 57334, 78698, 94943, 189886, 544673, 1089346, 10348787, 20697574]

約数ペア:

[(1, 20697574), (2, 10348787), (19, 1089346), (38, 544673), (109, 189886), (218, 94943), (263, 78698), (361, 57334), (526, 39349), (722, 28667), (2071, 9994), (4142, 4997)]