19973503

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 23091840

約数和(自身を除く): 3118337

約数列:

[1, 11, 19, 209, 227, 421, 2497, 4313, 4631, 7999, 47443, 87989, 95567, 1051237, 1815773, 19973503]

約数ペア:

[(1, 19973503), (11, 1815773), (19, 1051237), (209, 95567), (227, 87989), (421, 47443), (2497, 7999), (4313, 4631)]