21845635

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 9258365

約数列:

[1, 5, 7, 35, 59, 71, 149, 295, 355, 413, 497, 745, 1043, 2065, 2485, 4189, 5215, 8791, 10579, 20945, 29323, 43955, 52895, 61537, 74053, 146615, 307685, 370265, 624161, 3120805, 4369127, 21845635]

約数ペア:

[(1, 21845635), (5, 4369127), (7, 3120805), (35, 624161), (59, 370265), (71, 307685), (149, 146615), (295, 74053), (355, 61537), (413, 52895), (497, 43955), (745, 29323), (1043, 20945), (2065, 10579), (2485, 8791), (4189, 5215)]