21640968

素因数分解:

$2^3\times 3^2\times {\mathrm{300569}}^1$

素因数の和:300581

約数の個数: 24

約数和(自身を含む): 58611150

約数和(自身を除く): 36970182

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 300569, 601138, 901707, 1202276, 1803414, 2404552, 2705121, 3606828, 5410242, 7213656, 10820484, 21640968]

約数ペア:

[(1, 21640968), (2, 10820484), (3, 7213656), (4, 5410242), (6, 3606828), (8, 2705121), (9, 2404552), (12, 1803414), (18, 1202276), (24, 901707), (36, 601138), (72, 300569)]