21336728

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9293}}^1$

素因数の和:9347

約数の個数: 32

約数和(自身を含む): 46841760

約数和(自身を除く): 25505032

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 9293, 18586, 37172, 65051, 74344, 130102, 260204, 381013, 520408, 762026, 1524052, 2667091, 3048104, 5334182, 10668364, 21336728]

約数ペア:

[(1, 21336728), (2, 10668364), (4, 5334182), (7, 3048104), (8, 2667091), (14, 1524052), (28, 762026), (41, 520408), (56, 381013), (82, 260204), (164, 130102), (287, 74344), (328, 65051), (574, 37172), (1148, 18586), (2296, 9293)]