21494416

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{283}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 43104384

約数和(自身を除く): 21609968

約数列:

[1, 2, 4, 8, 16, 47, 94, 101, 188, 202, 283, 376, 404, 566, 752, 808, 1132, 1616, 2264, 4528, 4747, 9494, 13301, 18988, 26602, 28583, 37976, 53204, 57166, 75952, 106408, 114332, 212816, 228664, 457328, 1343401, 2686802, 5373604, 10747208, 21494416]

約数ペア:

[(1, 21494416), (2, 10747208), (4, 5373604), (8, 2686802), (16, 1343401), (47, 457328), (94, 228664), (101, 212816), (188, 114332), (202, 106408), (283, 75952), (376, 57166), (404, 53204), (566, 37976), (752, 28583), (808, 26602), (1132, 18988), (1616, 13301), (2264, 9494), (4528, 4747)]