2019987221

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 2506996800

約数和(自身を除く): 487009579

約数列:

[1, 7, 41, 43, 49, 67, 287, 301, 349, 469, 1763, 2009, 2107, 2443, 2747, 2881, 3283, 12341, 14309, 15007, 17101, 19229, 20167, 23383, 86387, 100163, 105049, 118121, 134603, 141169, 163681, 615287, 701141, 735343, 826847, 958703, 1005469, 1145767, 4307009, 5787929, 6710921, 7038283, 30149063, 41224229, 46976447, 49267981, 288569603, 2019987221]

約数ペア:

[(1, 2019987221), (7, 288569603), (41, 49267981), (43, 46976447), (49, 41224229), (67, 30149063), (287, 7038283), (301, 6710921), (349, 5787929), (469, 4307009), (1763, 1145767), (2009, 1005469), (2107, 958703), (2443, 826847), (2747, 735343), (2881, 701141), (3283, 615287), (12341, 163681), (14309, 141169), (15007, 134603), (17101, 118121), (19229, 105049), (20167, 100163), (23383, 86387)]