19905390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{221171}}^1$

素因数の和:221184

約数の個数: 24

約数和(自身を含む): 51754248

約数和(自身を除く): 31848858

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 221171, 442342, 663513, 1105855, 1327026, 1990539, 2211710, 3317565, 3981078, 6635130, 9952695, 19905390]

約数ペア:

[(1, 19905390), (2, 9952695), (3, 6635130), (5, 3981078), (6, 3317565), (9, 2211710), (10, 1990539), (15, 1327026), (18, 1105855), (30, 663513), (45, 442342), (90, 221171)]