2161971

素因数分解:

$3^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:94

約数の個数: 48

約数和(自身を含む): 3913728

約数和(自身を除く): 1751757

約数列:

[1, 3, 7, 9, 21, 27, 31, 41, 63, 81, 93, 123, 189, 217, 243, 279, 287, 369, 567, 651, 837, 861, 1107, 1271, 1701, 1953, 2511, 2583, 3321, 3813, 5859, 7533, 7749, 8897, 9963, 11439, 17577, 23247, 26691, 34317, 52731, 69741, 80073, 102951, 240219, 308853, 720657, 2161971]

約数ペア:

[(1, 2161971), (3, 720657), (7, 308853), (9, 240219), (21, 102951), (27, 80073), (31, 69741), (41, 52731), (63, 34317), (81, 26691), (93, 23247), (123, 17577), (189, 11439), (217, 9963), (243, 8897), (279, 7749), (287, 7533), (369, 5859), (567, 3813), (651, 3321), (837, 2583), (861, 2511), (1107, 1953), (1271, 1701)]