21029150

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9781}}^1$

素因数の和:9836

約数の個数: 24

約数和(自身を含む): 40027944

約数和(自身を除く): 18998794

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9781, 19562, 48905, 97810, 244525, 420583, 489050, 841166, 2102915, 4205830, 10514575, 21029150]

約数ペア:

[(1, 21029150), (2, 10514575), (5, 4205830), (10, 2102915), (25, 841166), (43, 489050), (50, 420583), (86, 244525), (215, 97810), (430, 48905), (1075, 19562), (2150, 9781)]