19581390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2243}}^1$

素因数の和:2353

約数の個数: 48

約数和(自身を含む): 51459408

約数和(自身を除く): 31878018

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 97, 194, 291, 485, 582, 873, 970, 1455, 1746, 2243, 2910, 4365, 4486, 6729, 8730, 11215, 13458, 20187, 22430, 33645, 40374, 67290, 100935, 201870, 217571, 435142, 652713, 1087855, 1305426, 1958139, 2175710, 3263565, 3916278, 6527130, 9790695, 19581390]

約数ペア:

[(1, 19581390), (2, 9790695), (3, 6527130), (5, 3916278), (6, 3263565), (9, 2175710), (10, 1958139), (15, 1305426), (18, 1087855), (30, 652713), (45, 435142), (90, 217571), (97, 201870), (194, 100935), (291, 67290), (485, 40374), (582, 33645), (873, 22430), (970, 20187), (1455, 13458), (1746, 11215), (2243, 8730), (2910, 6729), (4365, 4486)]