1989487437

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{3671}}^1$

素因数の和:4009

約数の個数: 32

約数和(自身を含む): 3071084544

約数和(自身を除く): 1081597107

約数列:

[1, 3, 7, 21, 131, 197, 393, 591, 917, 1379, 2751, 3671, 4137, 11013, 25697, 25807, 77091, 77421, 180649, 480901, 541947, 723187, 1442703, 2169561, 3366307, 5062309, 10098921, 15186927, 94737497, 284212491, 663162479, 1989487437]

約数ペア:

[(1, 1989487437), (3, 663162479), (7, 284212491), (21, 94737497), (131, 15186927), (197, 10098921), (393, 5062309), (591, 3366307), (917, 2169561), (1379, 1442703), (2751, 723187), (3671, 541947), (4137, 480901), (11013, 180649), (25697, 77421), (25807, 77091)]