21463554820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1947691}}^1$

素因数の和:1947748

約数の個数: 48

約数和(自身を含む): 49081838400

約数和(自身を除く): 27618283580

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 2204, 2755, 5510, 11020, 1947691, 3895382, 7790764, 9738455, 19476910, 37006129, 38953820, 56483039, 74012258, 112966078, 148024516, 185030645, 225932156, 282415195, 370061290, 564830390, 740122580, 1073177741, 1129660780, 2146355482, 4292710964, 5365888705, 10731777410, 21463554820]

約数ペア:

[(1, 21463554820), (2, 10731777410), (4, 5365888705), (5, 4292710964), (10, 2146355482), (19, 1129660780), (20, 1073177741), (29, 740122580), (38, 564830390), (58, 370061290), (76, 282415195), (95, 225932156), (116, 185030645), (145, 148024516), (190, 112966078), (290, 74012258), (380, 56483039), (551, 38953820), (580, 37006129), (1102, 19476910), (2204, 9738455), (2755, 7790764), (5510, 3895382), (11020, 1947691)]