168538181

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^2$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 205855872

約数和(自身を除く): 37317691

約数列:

[1, 7, 23, 61, 131, 161, 427, 917, 1403, 3013, 7991, 9821, 17161, 21091, 55937, 120127, 183793, 394703, 1046821, 1286551, 2762921, 7327747, 24076883, 168538181]

約数ペア:

[(1, 168538181), (7, 24076883), (23, 7327747), (61, 2762921), (131, 1286551), (161, 1046821), (427, 394703), (917, 183793), (1403, 120127), (3013, 55937), (7991, 21091), (9821, 17161)]