81961918

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{9203}}^1$

素因数の和:9339

約数の個数: 16

約数和(自身を含む): 126683856

約数和(自身を除く): 44721938

約数列:

[1, 2, 61, 73, 122, 146, 4453, 8906, 9203, 18406, 561383, 671819, 1122766, 1343638, 40980959, 81961918]

約数ペア:

[(1, 81961918), (2, 40980959), (61, 1343638), (73, 1122766), (122, 671819), (146, 561383), (4453, 18406), (8906, 9203)]