21687312

素因数分解:

$2^4\times 3^1\times {\mathrm{131}}^1\times {\mathrm{3449}}^1$

素因数の和:3591

約数の個数: 40

約数和(自身を含む): 56469600

約数和(自身を除く): 34782288

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 131, 262, 393, 524, 786, 1048, 1572, 2096, 3144, 3449, 6288, 6898, 10347, 13796, 20694, 27592, 41388, 55184, 82776, 165552, 451819, 903638, 1355457, 1807276, 2710914, 3614552, 5421828, 7229104, 10843656, 21687312]

約数ペア:

[(1, 21687312), (2, 10843656), (3, 7229104), (4, 5421828), (6, 3614552), (8, 2710914), (12, 1807276), (16, 1355457), (24, 903638), (48, 451819), (131, 165552), (262, 82776), (393, 55184), (524, 41388), (786, 27592), (1048, 20694), (1572, 13796), (2096, 10347), (3144, 6898), (3449, 6288)]