20799233

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 27052032

約数和(自身を除く): 6252799

約数列:

[1, 7, 13, 31, 73, 91, 101, 217, 403, 511, 707, 949, 1313, 2263, 2821, 3131, 6643, 7373, 9191, 15841, 21917, 29419, 40703, 51611, 95849, 205933, 228563, 284921, 670943, 1599941, 2971319, 20799233]

約数ペア:

[(1, 20799233), (7, 2971319), (13, 1599941), (31, 670943), (73, 284921), (91, 228563), (101, 205933), (217, 95849), (403, 51611), (511, 40703), (707, 29419), (949, 21917), (1313, 15841), (2263, 9191), (2821, 7373), (3131, 6643)]