19756436

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 21490924

約数列:

[1, 2, 4, 7, 14, 28, 43, 61, 86, 122, 172, 244, 269, 301, 427, 538, 602, 854, 1076, 1204, 1708, 1883, 2623, 3766, 5246, 7532, 10492, 11567, 16409, 18361, 23134, 32818, 36722, 46268, 65636, 73444, 80969, 114863, 161938, 229726, 323876, 459452, 705587, 1411174, 2822348, 4939109, 9878218, 19756436]

約数ペア:

[(1, 19756436), (2, 9878218), (4, 4939109), (7, 2822348), (14, 1411174), (28, 705587), (43, 459452), (61, 323876), (86, 229726), (122, 161938), (172, 114863), (244, 80969), (269, 73444), (301, 65636), (427, 46268), (538, 36722), (602, 32818), (854, 23134), (1076, 18361), (1204, 16409), (1708, 11567), (1883, 10492), (2623, 7532), (3766, 5246)]