21007029218

素因数分解:

$2^1\times 7^2\times {\mathrm{7547}}^1\times {\mathrm{28403}}^1$

素因数の和:35966

約数の個数: 24

約数和(自身を含む): 36661270032

約数和(自身を除く): 15654240814

約数列:

[1, 2, 7, 14, 49, 98, 7547, 15094, 28403, 52829, 56806, 105658, 198821, 369803, 397642, 739606, 1391747, 2783494, 214357441, 428714882, 1500502087, 3001004174, 10503514609, 21007029218]

約数ペア:

[(1, 21007029218), (2, 10503514609), (7, 3001004174), (14, 1500502087), (49, 428714882), (98, 214357441), (7547, 2783494), (15094, 1391747), (28403, 739606), (52829, 397642), (56806, 369803), (105658, 198821)]