20800872001

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1499}}^1\times {\mathrm{4919}}^1$

素因数の和:6469

約数の個数: 32

約数和(自身を含む): 26449920000

約数和(自身を除く): 5649047999

約数列:

[1, 7, 13, 31, 91, 217, 403, 1499, 2821, 4919, 10493, 19487, 34433, 46469, 63947, 136409, 152489, 325283, 447629, 604097, 1067423, 1982357, 4228679, 7373581, 13876499, 51615067, 95856553, 228581011, 670995871, 1600067077, 2971553143, 20800872001]

約数ペア:

[(1, 20800872001), (7, 2971553143), (13, 1600067077), (31, 670995871), (91, 228581011), (217, 95856553), (403, 51615067), (1499, 13876499), (2821, 7373581), (4919, 4228679), (10493, 1982357), (19487, 1067423), (34433, 604097), (46469, 447629), (63947, 325283), (136409, 152489)]