19976704

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{3547}}^1$

素因数の和:3576

約数の個数: 40

約数和(自身を含む): 43555248

約数和(自身を除く): 23578544

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 512, 704, 1408, 2816, 3547, 5632, 7094, 14188, 28376, 39017, 56752, 78034, 113504, 156068, 227008, 312136, 454016, 624272, 908032, 1248544, 1816064, 2497088, 4994176, 9988352, 19976704]

約数ペア:

[(1, 19976704), (2, 9988352), (4, 4994176), (8, 2497088), (11, 1816064), (16, 1248544), (22, 908032), (32, 624272), (44, 454016), (64, 312136), (88, 227008), (128, 156068), (176, 113504), (256, 78034), (352, 56752), (512, 39017), (704, 28376), (1408, 14188), (2816, 7094), (3547, 5632)]