21512784

素因数分解:

$2^4\times 3^1\times {\mathrm{127}}^1\times {\mathrm{3529}}^1$

素因数の和:3667

約数の個数: 40

約数和(自身を含む): 56028160

約数和(自身を除く): 34515376

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 127, 254, 381, 508, 762, 1016, 1524, 2032, 3048, 3529, 6096, 7058, 10587, 14116, 21174, 28232, 42348, 56464, 84696, 169392, 448183, 896366, 1344549, 1792732, 2689098, 3585464, 5378196, 7170928, 10756392, 21512784]

約数ペア:

[(1, 21512784), (2, 10756392), (3, 7170928), (4, 5378196), (6, 3585464), (8, 2689098), (12, 1792732), (16, 1344549), (24, 896366), (48, 448183), (127, 169392), (254, 84696), (381, 56464), (508, 42348), (762, 28232), (1016, 21174), (1524, 14116), (2032, 10587), (3048, 7058), (3529, 6096)]