21527768

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 19840552

約数列:

[1, 2, 4, 8, 71, 142, 151, 251, 284, 302, 502, 568, 604, 1004, 1208, 2008, 10721, 17821, 21442, 35642, 37901, 42884, 71284, 75802, 85768, 142568, 151604, 303208, 2690971, 5381942, 10763884, 21527768]

約数ペア:

[(1, 21527768), (2, 10763884), (4, 5381942), (8, 2690971), (71, 303208), (142, 151604), (151, 142568), (251, 85768), (284, 75802), (302, 71284), (502, 42884), (568, 37901), (604, 35642), (1004, 21442), (1208, 17821), (2008, 10721)]