31240979

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 40014000

約数和(自身を除く): 8773021

約数列:

[1, 7, 11, 49, 77, 149, 389, 539, 1043, 1639, 2723, 4279, 7301, 11473, 19061, 29953, 57961, 80311, 209671, 405727, 637571, 2840089, 4462997, 31240979]

約数ペア:

[(1, 31240979), (7, 4462997), (11, 2840089), (49, 637571), (77, 405727), (149, 209671), (389, 80311), (539, 57961), (1043, 29953), (1639, 19061), (2723, 11473), (4279, 7301)]