856643957

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 1000188000

約数和(自身を除く): 143544043

約数列:

[1, 13, 17, 89, 97, 221, 449, 1157, 1261, 1513, 1649, 5837, 7633, 8633, 19669, 21437, 39961, 43553, 99229, 112229, 146761, 519493, 566189, 679337, 740401, 1907893, 3876217, 8831381, 9625213, 50390821, 65895689, 856643957]

約数ペア:

[(1, 856643957), (13, 65895689), (17, 50390821), (89, 9625213), (97, 8831381), (221, 3876217), (449, 1907893), (1157, 740401), (1261, 679337), (1513, 566189), (1649, 519493), (5837, 146761), (7633, 112229), (8633, 99229), (19669, 43553), (21437, 39961)]