21581370

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1193}}^1$

素因数の和:1276

約数の個数: 64

約数和(自身を含む): 58458240

約数和(自身を除く): 36876870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 67, 90, 134, 135, 201, 270, 335, 402, 603, 670, 1005, 1193, 1206, 1809, 2010, 2386, 3015, 3579, 3618, 5965, 6030, 7158, 9045, 10737, 11930, 17895, 18090, 21474, 32211, 35790, 53685, 64422, 79931, 107370, 159862, 161055, 239793, 322110, 399655, 479586, 719379, 799310, 1198965, 1438758, 2158137, 2397930, 3596895, 4316274, 7193790, 10790685, 21581370]

約数ペア:

[(1, 21581370), (2, 10790685), (3, 7193790), (5, 4316274), (6, 3596895), (9, 2397930), (10, 2158137), (15, 1438758), (18, 1198965), (27, 799310), (30, 719379), (45, 479586), (54, 399655), (67, 322110), (90, 239793), (134, 161055), (135, 159862), (201, 107370), (270, 79931), (335, 64422), (402, 53685), (603, 35790), (670, 32211), (1005, 21474), (1193, 18090), (1206, 17895), (1809, 11930), (2010, 10737), (2386, 9045), (3015, 7158), (3579, 6030), (3618, 5965)]