18909821007

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{13163}}^1$

素因数の和:13881

約数の個数: 64

約数和(自身を含む): 34980433920

約数和(自身を除く): 16070612913

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 691, 693, 2073, 2079, 4837, 6219, 7601, 13163, 14511, 18657, 22803, 39489, 43533, 53207, 68409, 92141, 118467, 130599, 144793, 159621, 205227, 276423, 355401, 434379, 478863, 829269, 1013551, 1303137, 1436589, 2487807, 3040653, 3909411, 9095633, 9121959, 27286899, 27365877, 63669431, 81860697, 100051963, 191008293, 245582091, 300155889, 573024879, 700363741, 900467667, 1719074637, 2101091223, 2701403001, 6303273669, 18909821007]

約数ペア:

[(1, 18909821007), (3, 6303273669), (7, 2701403001), (9, 2101091223), (11, 1719074637), (21, 900467667), (27, 700363741), (33, 573024879), (63, 300155889), (77, 245582091), (99, 191008293), (189, 100051963), (231, 81860697), (297, 63669431), (691, 27365877), (693, 27286899), (2073, 9121959), (2079, 9095633), (4837, 3909411), (6219, 3040653), (7601, 2487807), (13163, 1436589), (14511, 1303137), (18657, 1013551), (22803, 829269), (39489, 478863), (43533, 434379), (53207, 355401), (68409, 276423), (92141, 205227), (118467, 159621), (130599, 144793)]