27979784

素因数分解:

$2^3\times 7^2\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 61590780

約数和(自身を除く): 33610996

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 137, 196, 274, 392, 521, 548, 959, 1042, 1096, 1918, 2084, 3647, 3836, 4168, 6713, 7294, 7672, 13426, 14588, 25529, 26852, 29176, 51058, 53704, 71377, 102116, 142754, 204232, 285508, 499639, 571016, 999278, 1998556, 3497473, 3997112, 6994946, 13989892, 27979784]

約数ペア:

[(1, 27979784), (2, 13989892), (4, 6994946), (7, 3997112), (8, 3497473), (14, 1998556), (28, 999278), (49, 571016), (56, 499639), (98, 285508), (137, 204232), (196, 142754), (274, 102116), (392, 71377), (521, 53704), (548, 51058), (959, 29176), (1042, 26852), (1096, 25529), (1918, 14588), (2084, 13426), (3647, 7672), (3836, 7294), (4168, 6713)]