81931878

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{216751}}^1$

素因数の和:216769

約数の個数: 32

約数和(自身を含む): 208081920

約数和(自身を除く): 126150042

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 216751, 433502, 650253, 1300506, 1517257, 1950759, 3034514, 3901518, 4551771, 5852277, 9103542, 11704554, 13655313, 27310626, 40965939, 81931878]

約数ペア:

[(1, 81931878), (2, 40965939), (3, 27310626), (6, 13655313), (7, 11704554), (9, 9103542), (14, 5852277), (18, 4551771), (21, 3901518), (27, 3034514), (42, 1950759), (54, 1517257), (63, 1300506), (126, 650253), (189, 433502), (378, 216751)]