18901669969

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{1297}}^1$

素因数の和:1554

約数の個数: 48

約数和(自身を含む): 23837011968

約数和(自身を除く): 4935341999

約数列:

[1, 7, 13, 91, 97, 127, 169, 679, 889, 1183, 1261, 1297, 1651, 8827, 9079, 11557, 12319, 16393, 16861, 21463, 86233, 114751, 118027, 125809, 150241, 160147, 164719, 219193, 880663, 1121029, 1153033, 1534351, 1635517, 2081911, 2141347, 11448619, 14573377, 14989429, 15977743, 21261721, 27837511, 111844201, 148832047, 194862577, 207710659, 1453974613, 2700238567, 18901669969]

約数ペア:

[(1, 18901669969), (7, 2700238567), (13, 1453974613), (91, 207710659), (97, 194862577), (127, 148832047), (169, 111844201), (679, 27837511), (889, 21261721), (1183, 15977743), (1261, 14989429), (1297, 14573377), (1651, 11448619), (8827, 2141347), (9079, 2081911), (11557, 1635517), (12319, 1534351), (16393, 1153033), (16861, 1121029), (21463, 880663), (86233, 219193), (114751, 164719), (118027, 160147), (125809, 150241)]