21094400

素因数分解:

$2^{13}\times 5^2\times {\mathrm{103}}^1$

素因数の和:139

約数の個数: 84

約数和(自身を含む): 52818792

約数和(自身を除く): 31724392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 103, 128, 160, 200, 206, 256, 320, 400, 412, 512, 515, 640, 800, 824, 1024, 1030, 1280, 1600, 1648, 2048, 2060, 2560, 2575, 3200, 3296, 4096, 4120, 5120, 5150, 6400, 6592, 8192, 8240, 10240, 10300, 12800, 13184, 16480, 20480, 20600, 25600, 26368, 32960, 40960, 41200, 51200, 52736, 65920, 82400, 102400, 105472, 131840, 164800, 204800, 210944, 263680, 329600, 421888, 527360, 659200, 843776, 1054720, 1318400, 2109440, 2636800, 4218880, 5273600, 10547200, 21094400]

約数ペア:

[(1, 21094400), (2, 10547200), (4, 5273600), (5, 4218880), (8, 2636800), (10, 2109440), (16, 1318400), (20, 1054720), (25, 843776), (32, 659200), (40, 527360), (50, 421888), (64, 329600), (80, 263680), (100, 210944), (103, 204800), (128, 164800), (160, 131840), (200, 105472), (206, 102400), (256, 82400), (320, 65920), (400, 52736), (412, 51200), (512, 41200), (515, 40960), (640, 32960), (800, 26368), (824, 25600), (1024, 20600), (1030, 20480), (1280, 16480), (1600, 13184), (1648, 12800), (2048, 10300), (2060, 10240), (2560, 8240), (2575, 8192), (3200, 6592), (3296, 6400), (4096, 5150), (4120, 5120)]