28643505

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2591}}^1$

素因数の和:2677

約数の個数: 32

約数和(自身を含む): 50761728

約数和(自身を除く): 22118223

約数列:

[1, 3, 5, 11, 15, 33, 55, 67, 165, 201, 335, 737, 1005, 2211, 2591, 3685, 7773, 11055, 12955, 28501, 38865, 85503, 142505, 173597, 427515, 520791, 867985, 1909567, 2603955, 5728701, 9547835, 28643505]

約数ペア:

[(1, 28643505), (3, 9547835), (5, 5728701), (11, 2603955), (15, 1909567), (33, 867985), (55, 520791), (67, 427515), (165, 173597), (201, 142505), (335, 85503), (737, 38865), (1005, 28501), (2211, 12955), (2591, 11055), (3685, 7773)]