21197204

素因数分解:

$2^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1303}}^1$

素因数の和:1404

約数の個数: 36

約数和(自身を含む): 43704864

約数和(自身を除く): 22507660

約数列:

[1, 2, 4, 7, 14, 28, 49, 83, 98, 166, 196, 332, 581, 1162, 1303, 2324, 2606, 4067, 5212, 8134, 9121, 16268, 18242, 36484, 63847, 108149, 127694, 216298, 255388, 432596, 757043, 1514086, 3028172, 5299301, 10598602, 21197204]

約数ペア:

[(1, 21197204), (2, 10598602), (4, 5299301), (7, 3028172), (14, 1514086), (28, 757043), (49, 432596), (83, 255388), (98, 216298), (166, 127694), (196, 108149), (332, 63847), (581, 36484), (1162, 18242), (1303, 16268), (2324, 9121), (2606, 8134), (4067, 5212)]