15520131

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 26557440

約数和(自身を除く): 11037309

約数列:

[1, 3, 9, 11, 19, 33, 37, 57, 99, 111, 171, 209, 223, 333, 407, 627, 669, 703, 1221, 1881, 2007, 2109, 2453, 3663, 4237, 6327, 7359, 7733, 8251, 12711, 22077, 23199, 24753, 38133, 46607, 69597, 74259, 90761, 139821, 156769, 272283, 419463, 470307, 816849, 1410921, 1724459, 5173377, 15520131]

約数ペア:

[(1, 15520131), (3, 5173377), (9, 1724459), (11, 1410921), (19, 816849), (33, 470307), (37, 419463), (57, 272283), (99, 156769), (111, 139821), (171, 90761), (209, 74259), (223, 69597), (333, 46607), (407, 38133), (627, 24753), (669, 23199), (703, 22077), (1221, 12711), (1881, 8251), (2007, 7733), (2109, 7359), (2453, 6327), (3663, 4237)]