21878045277

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{71387}}^1$

素因数の和:71689

約数の個数: 32

約数和(自身を含む): 32813351424

約数和(自身を除く): 10935306147

約数列:

[1, 3, 11, 33, 37, 111, 251, 407, 753, 1221, 2761, 8283, 9287, 27861, 71387, 102157, 214161, 306471, 785257, 2355771, 2641319, 7923957, 17918137, 29054509, 53754411, 87163527, 197099507, 591298521, 662971069, 1988913207, 7292681759, 21878045277]

約数ペア:

[(1, 21878045277), (3, 7292681759), (11, 1988913207), (33, 662971069), (37, 591298521), (111, 197099507), (251, 87163527), (407, 53754411), (753, 29054509), (1221, 17918137), (2761, 7923957), (8283, 2641319), (9287, 2355771), (27861, 785257), (71387, 306471), (102157, 214161)]