19988251921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1567829}}^1$

素因数の和:1567920

約数の個数: 16

約数和(自身を含む): 23329310400

約数和(自身を除く): 3341058479

約数列:

[1, 11, 19, 61, 209, 671, 1159, 12749, 1567829, 17246119, 29788751, 95637569, 327676261, 1052013259, 1817113811, 19988251921]

約数ペア:

[(1, 19988251921), (11, 1817113811), (19, 1052013259), (61, 327676261), (209, 95637569), (671, 29788751), (1159, 17246119), (12749, 1567829)]