21521200

素因数分解:

$2^4\times 5^2\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:502

約数の個数: 60

約数和(自身を含む): 52170768

約数和(自身を除く): 30649568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 173, 200, 311, 346, 400, 622, 692, 865, 1244, 1384, 1555, 1730, 2488, 2768, 3110, 3460, 4325, 4976, 6220, 6920, 7775, 8650, 12440, 13840, 15550, 17300, 24880, 31100, 34600, 53803, 62200, 69200, 107606, 124400, 215212, 269015, 430424, 538030, 860848, 1076060, 1345075, 2152120, 2690150, 4304240, 5380300, 10760600, 21521200]

約数ペア:

[(1, 21521200), (2, 10760600), (4, 5380300), (5, 4304240), (8, 2690150), (10, 2152120), (16, 1345075), (20, 1076060), (25, 860848), (40, 538030), (50, 430424), (80, 269015), (100, 215212), (173, 124400), (200, 107606), (311, 69200), (346, 62200), (400, 53803), (622, 34600), (692, 31100), (865, 24880), (1244, 17300), (1384, 15550), (1555, 13840), (1730, 12440), (2488, 8650), (2768, 7775), (3110, 6920), (3460, 6220), (4325, 4976)]