19778979

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 30030336

約数和(自身を除く): 10251357

約数列:

[1, 3, 11, 33, 37, 97, 111, 167, 291, 407, 501, 1067, 1221, 1837, 3201, 3589, 5511, 6179, 10767, 16199, 18537, 39479, 48597, 67969, 118437, 178189, 203907, 534567, 599363, 1798089, 6592993, 19778979]

約数ペア:

[(1, 19778979), (3, 6592993), (11, 1798089), (33, 599363), (37, 534567), (97, 203907), (111, 178189), (167, 118437), (291, 67969), (407, 48597), (501, 39479), (1067, 18537), (1221, 16199), (1837, 10767), (3201, 6179), (3589, 5511)]