19947508

素因数分解:

$2^2\times 7^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:130

約数の個数: 60

約数和(自身を含む): 42664832

約数和(自身を除く): 22717324

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 67, 98, 124, 134, 196, 217, 268, 343, 434, 469, 686, 868, 938, 1372, 1519, 1876, 2077, 2401, 3038, 3283, 4154, 4802, 6076, 6566, 8308, 9604, 10633, 13132, 14539, 21266, 22981, 29078, 42532, 45962, 58156, 74431, 91924, 101773, 148862, 160867, 203546, 297724, 321734, 407092, 643468, 712411, 1424822, 2849644, 4986877, 9973754, 19947508]

約数ペア:

[(1, 19947508), (2, 9973754), (4, 4986877), (7, 2849644), (14, 1424822), (28, 712411), (31, 643468), (49, 407092), (62, 321734), (67, 297724), (98, 203546), (124, 160867), (134, 148862), (196, 101773), (217, 91924), (268, 74431), (343, 58156), (434, 45962), (469, 42532), (686, 29078), (868, 22981), (938, 21266), (1372, 14539), (1519, 13132), (1876, 10633), (2077, 9604), (2401, 8308), (3038, 6566), (3283, 6076), (4154, 4802)]