18897390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{209971}}^1$

素因数の和:209984

約数の個数: 24

約数和(自身を含む): 49133448

約数和(自身を除く): 30236058

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 209971, 419942, 629913, 1049855, 1259826, 1889739, 2099710, 3149565, 3779478, 6299130, 9448695, 18897390]

約数ペア:

[(1, 18897390), (2, 9448695), (3, 6299130), (5, 3779478), (6, 3149565), (9, 2099710), (10, 1889739), (15, 1259826), (18, 1049855), (30, 629913), (45, 419942), (90, 209971)]