21381936

素因数分解:

$2^4\times 3^1\times {\mathrm{307}}^1\times {\mathrm{1451}}^1$

素因数の和:1769

約数の個数: 40

約数和(自身を含む): 55454784

約数和(自身を除く): 34072848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 307, 614, 921, 1228, 1451, 1842, 2456, 2902, 3684, 4353, 4912, 5804, 7368, 8706, 11608, 14736, 17412, 23216, 34824, 69648, 445457, 890914, 1336371, 1781828, 2672742, 3563656, 5345484, 7127312, 10690968, 21381936]

約数ペア:

[(1, 21381936), (2, 10690968), (3, 7127312), (4, 5345484), (6, 3563656), (8, 2672742), (12, 1781828), (16, 1336371), (24, 890914), (48, 445457), (307, 69648), (614, 34824), (921, 23216), (1228, 17412), (1451, 14736), (1842, 11608), (2456, 8706), (2902, 7368), (3684, 5804), (4353, 4912)]