388264219

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 479001600

約数和(自身を除く): 90737381

約数列:

[1, 7, 23, 41, 131, 161, 287, 449, 917, 943, 3013, 3143, 5371, 6601, 10327, 18409, 21091, 37597, 58819, 72289, 123533, 128863, 411733, 423407, 864731, 1352837, 2411579, 2963849, 9469859, 16881053, 55466317, 388264219]

約数ペア:

[(1, 388264219), (7, 55466317), (23, 16881053), (41, 9469859), (131, 2963849), (161, 2411579), (287, 1352837), (449, 864731), (917, 423407), (943, 411733), (3013, 128863), (3143, 123533), (5371, 72289), (6601, 58819), (10327, 37597), (18409, 21091)]