20201115

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{641}}^1$

素因数の和:851

約数の個数: 32

約数和(自身を含む): 35500032

約数和(自身を除く): 15298917

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 191, 573, 641, 955, 1923, 2101, 2865, 3205, 6303, 7051, 9615, 10505, 21153, 31515, 35255, 105765, 122431, 367293, 612155, 1346741, 1836465, 4040223, 6733705, 20201115]

約数ペア:

[(1, 20201115), (3, 6733705), (5, 4040223), (11, 1836465), (15, 1346741), (33, 612155), (55, 367293), (165, 122431), (191, 105765), (573, 35255), (641, 31515), (955, 21153), (1923, 10505), (2101, 9615), (2865, 7051), (3205, 6303)]