28217895

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{919}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 47692800

約数和(自身を除く): 19474905

約数列:

[1, 3, 5, 15, 23, 69, 89, 115, 267, 345, 445, 919, 1335, 2047, 2757, 4595, 6141, 10235, 13785, 21137, 30705, 63411, 81791, 105685, 245373, 317055, 408955, 1226865, 1881193, 5643579, 9405965, 28217895]

約数ペア:

[(1, 28217895), (3, 9405965), (5, 5643579), (15, 1881193), (23, 1226865), (69, 408955), (89, 317055), (115, 245373), (267, 105685), (345, 81791), (445, 63411), (919, 30705), (1335, 21137), (2047, 13785), (2757, 10235), (4595, 6141)]