19457739

素因数分解:

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

素因数の和:100

約数の個数: 64

約数和(自身を含む): 35266560

約数和(自身を除く): 15808821

約数列:

[1, 3, 7, 9, 21, 27, 31, 41, 63, 81, 93, 123, 189, 217, 243, 279, 287, 369, 567, 651, 729, 837, 861, 1107, 1271, 1701, 1953, 2187, 2511, 2583, 3321, 3813, 5103, 5859, 7533, 7749, 8897, 9963, 11439, 15309, 17577, 22599, 23247, 26691, 29889, 34317, 52731, 67797, 69741, 80073, 89667, 102951, 158193, 209223, 240219, 308853, 474579, 627669, 720657, 926559, 2161971, 2779677, 6485913, 19457739]

約数ペア:

[(1, 19457739), (3, 6485913), (7, 2779677), (9, 2161971), (21, 926559), (27, 720657), (31, 627669), (41, 474579), (63, 308853), (81, 240219), (93, 209223), (123, 158193), (189, 102951), (217, 89667), (243, 80073), (279, 69741), (287, 67797), (369, 52731), (567, 34317), (651, 29889), (729, 26691), (837, 23247), (861, 22599), (1107, 17577), (1271, 15309), (1701, 11439), (1953, 9963), (2187, 8897), (2511, 7749), (2583, 7533), (3321, 5859), (3813, 5103)]