13781515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 19077120

約数和(自身を除く): 5295605

約数列:

[1, 5, 11, 31, 55, 59, 137, 155, 295, 341, 649, 685, 1507, 1705, 1829, 3245, 4247, 7535, 8083, 9145, 20119, 21235, 40415, 46717, 88913, 100595, 233585, 250573, 444565, 1252865, 2756303, 13781515]

約数ペア:

[(1, 13781515), (5, 2756303), (11, 1252865), (31, 444565), (55, 250573), (59, 233585), (137, 100595), (155, 88913), (295, 46717), (341, 40415), (649, 21235), (685, 20119), (1507, 9145), (1705, 8083), (1829, 7535), (3245, 4247)]