217762254

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{170393}}^1$

素因数の和:170472

約数の個数: 24

約数和(自身を含む): 478466352

約数和(自身を除く): 260704098

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 170393, 340786, 511179, 1022358, 1533537, 3067074, 12097903, 24195806, 36293709, 72587418, 108881127, 217762254]

約数ペア:

[(1, 217762254), (2, 108881127), (3, 72587418), (6, 36293709), (9, 24195806), (18, 12097903), (71, 3067074), (142, 1533537), (213, 1022358), (426, 511179), (639, 340786), (1278, 170393)]