19881064

素因数分解:

$2^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1237}}^1$

素因数の和:1298

約数の個数: 48

約数和(自身を含む): 44456580

約数和(自身を除く): 24575516

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 49, 56, 82, 98, 164, 196, 287, 328, 392, 574, 1148, 1237, 2009, 2296, 2474, 4018, 4948, 8036, 8659, 9896, 16072, 17318, 34636, 50717, 60613, 69272, 101434, 121226, 202868, 242452, 355019, 405736, 484904, 710038, 1420076, 2485133, 2840152, 4970266, 9940532, 19881064]

約数ペア:

[(1, 19881064), (2, 9940532), (4, 4970266), (7, 2840152), (8, 2485133), (14, 1420076), (28, 710038), (41, 484904), (49, 405736), (56, 355019), (82, 242452), (98, 202868), (164, 121226), (196, 101434), (287, 69272), (328, 60613), (392, 50717), (574, 34636), (1148, 17318), (1237, 16072), (2009, 9896), (2296, 8659), (2474, 8036), (4018, 4948)]