21691812

素因数分解:

$2^2\times 3^1\times {\mathrm{907}}^1\times {\mathrm{1993}}^1$

素因数の和:2907

約数の個数: 24

約数和(自身を含む): 50695456

約数和(自身を除く): 29003644

約数列:

[1, 2, 3, 4, 6, 12, 907, 1814, 1993, 2721, 3628, 3986, 5442, 5979, 7972, 10884, 11958, 23916, 1807651, 3615302, 5422953, 7230604, 10845906, 21691812]

約数ペア:

[(1, 21691812), (2, 10845906), (3, 7230604), (4, 5422953), (6, 3615302), (12, 1807651), (907, 23916), (1814, 11958), (1993, 10884), (2721, 7972), (3628, 5979), (3986, 5442)]