21531776

素因数分解:

$2^7\times 7^2\times {\mathrm{3433}}^1$

素因数の和:3461

約数の個数: 48

約数和(自身を含む): 49913190

約数和(自身を除く): 28381414

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3433, 6272, 6866, 13732, 24031, 27464, 48062, 54928, 96124, 109856, 168217, 192248, 219712, 336434, 384496, 439424, 672868, 768992, 1345736, 1537984, 2691472, 3075968, 5382944, 10765888, 21531776]

約数ペア:

[(1, 21531776), (2, 10765888), (4, 5382944), (7, 3075968), (8, 2691472), (14, 1537984), (16, 1345736), (28, 768992), (32, 672868), (49, 439424), (56, 384496), (64, 336434), (98, 219712), (112, 192248), (128, 168217), (196, 109856), (224, 96124), (392, 54928), (448, 48062), (784, 27464), (896, 24031), (1568, 13732), (3136, 6866), (3433, 6272)]