21483015

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1753}}^1$

素因数の和:1823

約数の個数: 32

約数和(自身を含む): 37044480

約数和(自身を除く): 15561465

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 215, 285, 645, 817, 1753, 2451, 4085, 5259, 8765, 12255, 26295, 33307, 75379, 99921, 166535, 226137, 376895, 499605, 1130685, 1432201, 4296603, 7161005, 21483015]

約数ペア:

[(1, 21483015), (3, 7161005), (5, 4296603), (15, 1432201), (19, 1130685), (43, 499605), (57, 376895), (95, 226137), (129, 166535), (215, 99921), (285, 75379), (645, 33307), (817, 26295), (1753, 12255), (2451, 8765), (4085, 5259)]