20787712

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{3691}}^1$

素因数の和:3720

約数の個数: 40

約数和(自身を含む): 45322992

約数和(自身を除く): 24535280

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 512, 704, 1408, 2816, 3691, 5632, 7382, 14764, 29528, 40601, 59056, 81202, 118112, 162404, 236224, 324808, 472448, 649616, 944896, 1299232, 1889792, 2598464, 5196928, 10393856, 20787712]

約数ペア:

[(1, 20787712), (2, 10393856), (4, 5196928), (8, 2598464), (11, 1889792), (16, 1299232), (22, 944896), (32, 649616), (44, 472448), (64, 324808), (88, 236224), (128, 162404), (176, 118112), (256, 81202), (352, 59056), (512, 40601), (704, 29528), (1408, 14764), (2816, 7382), (3691, 5632)]