21148020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39163}}^1$

素因数の和:39181

約数の個数: 48

約数和(自身を含む): 65795520

約数和(自身を除く): 44647500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39163, 78326, 117489, 156652, 195815, 234978, 352467, 391630, 469956, 587445, 704934, 783260, 1057401, 1174890, 1409868, 1762335, 2114802, 2349780, 3524670, 4229604, 5287005, 7049340, 10574010, 21148020]

約数ペア:

[(1, 21148020), (2, 10574010), (3, 7049340), (4, 5287005), (5, 4229604), (6, 3524670), (9, 2349780), (10, 2114802), (12, 1762335), (15, 1409868), (18, 1174890), (20, 1057401), (27, 783260), (30, 704934), (36, 587445), (45, 469956), (54, 391630), (60, 352467), (90, 234978), (108, 195815), (135, 156652), (180, 117489), (270, 78326), (540, 39163)]