21106040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17021}}^1$

素因数の和:17063

約数の個数: 32

約数和(自身を含む): 49023360

約数和(自身を除く): 27917320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 17021, 34042, 68084, 85105, 136168, 170210, 340420, 527651, 680840, 1055302, 2110604, 2638255, 4221208, 5276510, 10553020, 21106040]

約数ペア:

[(1, 21106040), (2, 10553020), (4, 5276510), (5, 4221208), (8, 2638255), (10, 2110604), (20, 1055302), (31, 680840), (40, 527651), (62, 340420), (124, 170210), (155, 136168), (248, 85105), (310, 68084), (620, 34042), (1240, 17021)]