197428

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 431424

約数和(自身を除く): 233996

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 641, 1282, 2564, 4487, 7051, 8974, 14102, 17948, 28204, 49357, 98714, 197428]

約数ペア:

[(1, 197428), (2, 98714), (4, 49357), (7, 28204), (11, 17948), (14, 14102), (22, 8974), (28, 7051), (44, 4487), (77, 2564), (154, 1282), (308, 641)]