20931554

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 36858240

約数和(自身を除く): 15926686

約数列:

[1, 2, 7, 14, 89, 107, 157, 178, 214, 314, 623, 749, 1099, 1246, 1498, 2198, 9523, 13973, 16799, 19046, 27946, 33598, 66661, 97811, 117593, 133322, 195622, 235186, 1495111, 2990222, 10465777, 20931554]

約数ペア:

[(1, 20931554), (2, 10465777), (7, 2990222), (14, 1495111), (89, 235186), (107, 195622), (157, 133322), (178, 117593), (214, 97811), (314, 66661), (623, 33598), (749, 27946), (1099, 19046), (1246, 16799), (1498, 13973), (2198, 9523)]