21348778857

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1\times {\mathrm{94771}}^1$

素因数の和:95429

約数の個数: 32

約数和(自身を含む): 34500040704

約数和(自身を除く): 13151261847

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 631, 1893, 4417, 10727, 13251, 32181, 75089, 94771, 225267, 284313, 663397, 1611107, 1990191, 4833321, 11277749, 33833247, 59800501, 179401503, 418603507, 1016608517, 1255810521, 3049825551, 7116259619, 21348778857]

約数ペア:

[(1, 21348778857), (3, 7116259619), (7, 3049825551), (17, 1255810521), (21, 1016608517), (51, 418603507), (119, 179401503), (357, 59800501), (631, 33833247), (1893, 11277749), (4417, 4833321), (10727, 1990191), (13251, 1611107), (32181, 663397), (75089, 284313), (94771, 225267)]