20291221

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{787}}^1$

素因数の和:888

約数の個数: 16

約数和(自身を含む): 22694400

約数和(自身を除く): 2403179

約数列:

[1, 19, 23, 59, 437, 787, 1121, 1357, 14953, 18101, 25783, 46433, 343919, 882227, 1067959, 20291221]

約数ペア:

[(1, 20291221), (19, 1067959), (23, 882227), (59, 343919), (437, 46433), (787, 25783), (1121, 18101), (1357, 14953)]