15456861

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 27664000

約数和(自身を除く): 12207139

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 111, 133, 171, 259, 333, 349, 399, 703, 777, 1047, 1197, 2109, 2331, 2443, 3141, 4921, 6327, 6631, 7329, 12913, 14763, 19893, 21987, 38739, 44289, 46417, 59679, 90391, 116217, 139251, 245347, 271173, 417753, 736041, 813519, 1717429, 2208123, 5152287, 15456861]

約数ペア:

[(1, 15456861), (3, 5152287), (7, 2208123), (9, 1717429), (19, 813519), (21, 736041), (37, 417753), (57, 271173), (63, 245347), (111, 139251), (133, 116217), (171, 90391), (259, 59679), (333, 46417), (349, 44289), (399, 38739), (703, 21987), (777, 19893), (1047, 14763), (1197, 12913), (2109, 7329), (2331, 6631), (2443, 6327), (3141, 4921)]