20453235

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 36771840

約数和(自身を除く): 16318605

約数列:

[1, 3, 5, 11, 15, 33, 55, 59, 121, 165, 177, 191, 295, 363, 573, 605, 649, 885, 955, 1815, 1947, 2101, 2865, 3245, 6303, 7139, 9735, 10505, 11269, 21417, 23111, 31515, 33807, 35695, 56345, 69333, 107085, 115555, 123959, 169035, 346665, 371877, 619795, 1363549, 1859385, 4090647, 6817745, 20453235]

約数ペア:

[(1, 20453235), (3, 6817745), (5, 4090647), (11, 1859385), (15, 1363549), (33, 619795), (55, 371877), (59, 346665), (121, 169035), (165, 123959), (177, 115555), (191, 107085), (295, 69333), (363, 56345), (573, 35695), (605, 33807), (649, 31515), (885, 23111), (955, 21417), (1815, 11269), (1947, 10505), (2101, 9735), (2865, 7139), (3245, 6303)]