21831412

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{683}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 39184992

約数和(自身を除く): 17353580

約数列:

[1, 2, 4, 61, 122, 131, 244, 262, 524, 683, 1366, 2732, 7991, 15982, 31964, 41663, 83326, 89473, 166652, 178946, 357892, 5457853, 10915706, 21831412]

約数ペア:

[(1, 21831412), (2, 10915706), (4, 5457853), (61, 357892), (122, 178946), (131, 166652), (244, 89473), (262, 83326), (524, 41663), (683, 31964), (1366, 15982), (2732, 7991)]