21511041

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 29198400

約数和(自身を除く): 7687359

約数列:

[1, 3, 109, 157, 327, 419, 471, 1257, 17113, 45671, 51339, 65783, 137013, 197349, 7170347, 21511041]

約数ペア:

[(1, 21511041), (3, 7170347), (109, 197349), (157, 137013), (327, 65783), (419, 51339), (471, 45671), (1257, 17113)]