19919748

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{72173}}^1$

素因数の和:72203

約数の個数: 24

約数和(自身を含む): 48500928

約数和(自身を除く): 28581180

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 72173, 144346, 216519, 288692, 433038, 866076, 1659979, 3319958, 4979937, 6639916, 9959874, 19919748]

約数ペア:

[(1, 19919748), (2, 9959874), (3, 6639916), (4, 4979937), (6, 3319958), (12, 1659979), (23, 866076), (46, 433038), (69, 288692), (92, 216519), (138, 144346), (276, 72173)]