1981854

素因数分解:

$2^1\times 3^3\times 7^3\times {\mathrm{107}}^1$

素因数の和:139

約数の個数: 64

約数和(自身を含む): 5184000

約数和(自身を除く): 3202146

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 107, 126, 147, 189, 214, 294, 321, 343, 378, 441, 642, 686, 749, 882, 963, 1029, 1323, 1498, 1926, 2058, 2247, 2646, 2889, 3087, 4494, 5243, 5778, 6174, 6741, 9261, 10486, 13482, 15729, 18522, 20223, 31458, 36701, 40446, 47187, 73402, 94374, 110103, 141561, 220206, 283122, 330309, 660618, 990927, 1981854]

約数ペア:

[(1, 1981854), (2, 990927), (3, 660618), (6, 330309), (7, 283122), (9, 220206), (14, 141561), (18, 110103), (21, 94374), (27, 73402), (42, 47187), (49, 40446), (54, 36701), (63, 31458), (98, 20223), (107, 18522), (126, 15729), (147, 13482), (189, 10486), (214, 9261), (294, 6741), (321, 6174), (343, 5778), (378, 5243), (441, 4494), (642, 3087), (686, 2889), (749, 2646), (882, 2247), (963, 2058), (1029, 1926), (1323, 1498)]