21715658495

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{9887}}^1$

素因数の和:10255

約数の個数: 32

約数和(自身を含む): 27680071680

約数和(自身を除く): 5964413185

約数列:

[1, 5, 23, 71, 115, 269, 355, 1345, 1633, 6187, 8165, 9887, 19099, 30935, 49435, 95495, 227401, 439277, 701977, 1137005, 2196385, 2659603, 3509885, 13298015, 16145471, 61170869, 80727355, 188831813, 305854345, 944159065, 4343131699, 21715658495]

約数ペア:

[(1, 21715658495), (5, 4343131699), (23, 944159065), (71, 305854345), (115, 188831813), (269, 80727355), (355, 61170869), (1345, 16145471), (1633, 13298015), (6187, 3509885), (8165, 2659603), (9887, 2196385), (19099, 1137005), (30935, 701977), (49435, 439277), (95495, 227401)]