128569891723

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1151}}^1\times {\mathrm{20123}}^1$

素因数の和:21355

約数の個数: 32

約数和(自身を含む): 160981696512

約数和(自身を除く): 32411804789

約数列:

[1, 7, 13, 61, 91, 427, 793, 1151, 5551, 8057, 14963, 20123, 70211, 104741, 140861, 261599, 491477, 912743, 1227503, 1831193, 6389201, 8592521, 15957539, 23161573, 111702773, 162131011, 301100449, 1412855953, 2107703143, 9889991671, 18367127389, 128569891723]

約数ペア:

[(1, 128569891723), (7, 18367127389), (13, 9889991671), (61, 2107703143), (91, 1412855953), (427, 301100449), (793, 162131011), (1151, 111702773), (5551, 23161573), (8057, 15957539), (14963, 8592521), (20123, 6389201), (70211, 1831193), (104741, 1227503), (140861, 912743), (261599, 491477)]