21149103616

素因数分解:

$2^9\times {\mathrm{47}}^1\times {\mathrm{878869}}^1$

素因数の和:878934

約数の個数: 40

約数和(自身を含む): 43156032480

約数和(自身を除く): 22006928864

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 256, 376, 512, 752, 1504, 3008, 6016, 12032, 24064, 878869, 1757738, 3515476, 7030952, 14061904, 28123808, 41306843, 56247616, 82613686, 112495232, 165227372, 224990464, 330454744, 449980928, 660909488, 1321818976, 2643637952, 5287275904, 10574551808, 21149103616]

約数ペア:

[(1, 21149103616), (2, 10574551808), (4, 5287275904), (8, 2643637952), (16, 1321818976), (32, 660909488), (47, 449980928), (64, 330454744), (94, 224990464), (128, 165227372), (188, 112495232), (256, 82613686), (376, 56247616), (512, 41306843), (752, 28123808), (1504, 14061904), (3008, 7030952), (6016, 3515476), (12032, 1757738), (24064, 878869)]