21020194

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2503}}^1$

素因数の和:2554

約数の個数: 32

約数和(自身を含む): 37860480

約数和(自身を除く): 16840286

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 221, 247, 323, 442, 494, 646, 2503, 4199, 5006, 8398, 32539, 42551, 47557, 65078, 85102, 95114, 553163, 618241, 808469, 1106326, 1236482, 1616938, 10510097, 21020194]

約数ペア:

[(1, 21020194), (2, 10510097), (13, 1616938), (17, 1236482), (19, 1106326), (26, 808469), (34, 618241), (38, 553163), (221, 95114), (247, 85102), (323, 65078), (442, 47557), (494, 42551), (646, 32539), (2503, 8398), (4199, 5006)]