21444176

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{787}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 45142944

約数和(自身を除く): 23698768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 131, 208, 262, 524, 787, 1048, 1574, 1703, 2096, 3148, 3406, 6296, 6812, 10231, 12592, 13624, 20462, 27248, 40924, 81848, 103097, 163696, 206194, 412388, 824776, 1340261, 1649552, 2680522, 5361044, 10722088, 21444176]

約数ペア:

[(1, 21444176), (2, 10722088), (4, 5361044), (8, 2680522), (13, 1649552), (16, 1340261), (26, 824776), (52, 412388), (104, 206194), (131, 163696), (208, 103097), (262, 81848), (524, 40924), (787, 27248), (1048, 20462), (1574, 13624), (1703, 12592), (2096, 10231), (3148, 6812), (3406, 6296)]