20199891663

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{8941}}^1$

素因数の和:9117

約数の個数: 72

約数和(自身を含む): 34985396160

約数和(自身を除く): 14785504497

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 109, 141, 147, 327, 329, 423, 441, 763, 981, 987, 2289, 2303, 2961, 5123, 5341, 6867, 6909, 8941, 15369, 16023, 20727, 26823, 35861, 46107, 48069, 62587, 80469, 107583, 187761, 251027, 322749, 420227, 438109, 563283, 753081, 974569, 1260681, 1314327, 2259243, 2923707, 2941589, 3782043, 3942981, 6821983, 8771121, 8824767, 20465949, 20591123, 26474301, 45804743, 47753881, 61397847, 61773369, 137414229, 143261643, 185320107, 320633201, 412242687, 429784929, 961899603, 2244432407, 2885698809, 6733297221, 20199891663]

約数ペア:

[(1, 20199891663), (3, 6733297221), (7, 2885698809), (9, 2244432407), (21, 961899603), (47, 429784929), (49, 412242687), (63, 320633201), (109, 185320107), (141, 143261643), (147, 137414229), (327, 61773369), (329, 61397847), (423, 47753881), (441, 45804743), (763, 26474301), (981, 20591123), (987, 20465949), (2289, 8824767), (2303, 8771121), (2961, 6821983), (5123, 3942981), (5341, 3782043), (6867, 2941589), (6909, 2923707), (8941, 2259243), (15369, 1314327), (16023, 1260681), (20727, 974569), (26823, 753081), (35861, 563283), (46107, 438109), (48069, 420227), (62587, 322749), (80469, 251027), (107583, 187761)]