31021155

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2161}}^1$

素因数の和:2212

約数の個数: 48

約数和(自身を含む): 60708960

約数和(自身を除く): 29687805

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1595, 2161, 2871, 4785, 6483, 10805, 14355, 19449, 23771, 32415, 62669, 71313, 97245, 118855, 188007, 213939, 313345, 356565, 564021, 689359, 940035, 1069695, 2068077, 2820105, 3446795, 6204231, 10340385, 31021155]

約数ペア:

[(1, 31021155), (3, 10340385), (5, 6204231), (9, 3446795), (11, 2820105), (15, 2068077), (29, 1069695), (33, 940035), (45, 689359), (55, 564021), (87, 356565), (99, 313345), (145, 213939), (165, 188007), (261, 118855), (319, 97245), (435, 71313), (495, 62669), (957, 32415), (1305, 23771), (1595, 19449), (2161, 14355), (2871, 10805), (4785, 6483)]