18883378

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:274

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 12163022

約数列:

[1, 2, 19, 38, 47, 94, 97, 109, 194, 218, 893, 1786, 1843, 2071, 3686, 4142, 4559, 5123, 9118, 10246, 10573, 21146, 86621, 97337, 173242, 194674, 200887, 401774, 496931, 993862, 9441689, 18883378]

約数ペア:

[(1, 18883378), (2, 9441689), (19, 993862), (38, 496931), (47, 401774), (94, 200887), (97, 194674), (109, 173242), (194, 97337), (218, 86621), (893, 21146), (1786, 10573), (1843, 10246), (2071, 9118), (3686, 5123), (4142, 4559)]