19915324

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{941}}^1$

素因数の和:1006

約数の個数: 48

約数和(自身を含む): 42096096

約数和(自身を除く): 22180772

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 941, 962, 1628, 1882, 1924, 3764, 5291, 10351, 10582, 12233, 20702, 21164, 24466, 34817, 41404, 48932, 69634, 134563, 139268, 269126, 382987, 452621, 538252, 765974, 905242, 1531948, 1810484, 4978831, 9957662, 19915324]

約数ペア:

[(1, 19915324), (2, 9957662), (4, 4978831), (11, 1810484), (13, 1531948), (22, 905242), (26, 765974), (37, 538252), (44, 452621), (52, 382987), (74, 269126), (143, 139268), (148, 134563), (286, 69634), (407, 48932), (481, 41404), (572, 34817), (814, 24466), (941, 21164), (962, 20702), (1628, 12233), (1882, 10582), (1924, 10351), (3764, 5291)]