161737121

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 204680448

約数和(自身を除く): 42943327

約数列:

[1, 7, 13, 73, 91, 97, 251, 511, 679, 949, 1261, 1757, 3263, 6643, 7081, 8827, 18323, 22841, 24347, 49567, 92053, 128261, 170429, 238199, 316511, 644371, 1667393, 1777331, 2215577, 12441317, 23105303, 161737121]

約数ペア:

[(1, 161737121), (7, 23105303), (13, 12441317), (73, 2215577), (91, 1777331), (97, 1667393), (251, 644371), (511, 316511), (679, 238199), (949, 170429), (1261, 128261), (1757, 92053), (3263, 49567), (6643, 24347), (7081, 22841), (8827, 18323)]