209210985

素因数分解:

$3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11149}}^1$

素因数の和:11302

約数の個数: 32

約数和(自身を含む): 374640000

約数和(自身を除く): 165429015

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139, 417, 695, 1251, 2085, 3753, 6255, 11149, 18765, 33447, 55745, 100341, 167235, 301023, 501705, 1505115, 1549711, 4649133, 7748555, 13947399, 23245665, 41842197, 69736995, 209210985]

約数ペア:

[(1, 209210985), (3, 69736995), (5, 41842197), (9, 23245665), (15, 13947399), (27, 7748555), (45, 4649133), (135, 1549711), (139, 1505115), (417, 501705), (695, 301023), (1251, 167235), (2085, 100341), (3753, 55745), (6255, 33447), (11149, 18765)]