21111530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{683}}^1$

素因数の和:982

約数の個数: 32

約数和(自身を含む): 41663808

約数和(自身を除く): 20552278

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 281, 562, 683, 1366, 1405, 2810, 3091, 3415, 6182, 6830, 7513, 15026, 15455, 30910, 37565, 75130, 191923, 383846, 959615, 1919230, 2111153, 4222306, 10555765, 21111530]

約数ペア:

[(1, 21111530), (2, 10555765), (5, 4222306), (10, 2111153), (11, 1919230), (22, 959615), (55, 383846), (110, 191923), (281, 75130), (562, 37565), (683, 30910), (1366, 15455), (1405, 15026), (2810, 7513), (3091, 6830), (3415, 6182)]