21320908

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33107}}^1$

素因数の和:33141

約数の個数: 24

約数和(自身を含む): 44497152

約数和(自身を除く): 23176244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33107, 66214, 132428, 231749, 463498, 761461, 926996, 1522922, 3045844, 5330227, 10660454, 21320908]

約数ペア:

[(1, 21320908), (2, 10660454), (4, 5330227), (7, 3045844), (14, 1522922), (23, 926996), (28, 761461), (46, 463498), (92, 231749), (161, 132428), (322, 66214), (644, 33107)]