20913396

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{5081}}^1$

素因数の和:5109

約数の個数: 48

約数和(自身を含む): 56918400

約数和(自身を除く): 36005004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 5081, 10162, 15243, 20324, 30486, 35567, 60972, 71134, 106701, 142268, 213402, 248969, 426804, 497938, 746907, 995876, 1493814, 1742783, 2987628, 3485566, 5228349, 6971132, 10456698, 20913396]

約数ペア:

[(1, 20913396), (2, 10456698), (3, 6971132), (4, 5228349), (6, 3485566), (7, 2987628), (12, 1742783), (14, 1493814), (21, 995876), (28, 746907), (42, 497938), (49, 426804), (84, 248969), (98, 213402), (147, 142268), (196, 106701), (294, 71134), (343, 60972), (588, 35567), (686, 30486), (1029, 20324), (1372, 15243), (2058, 10162), (4116, 5081)]