20184869897

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1\times {\mathrm{509}}^1$

素因数の和:1073

約数の個数: 32

約数和(自身を含む): 21863381760

約数和(自身を除く): 1678511863

約数列:

[1, 23, 43, 101, 397, 509, 989, 2323, 4343, 9131, 11707, 17071, 21887, 40097, 51409, 99889, 202073, 392633, 503401, 922231, 1182407, 1724171, 2210587, 4647679, 8689139, 20409373, 39655933, 50843501, 199850197, 469415579, 877603039, 20184869897]

約数ペア:

[(1, 20184869897), (23, 877603039), (43, 469415579), (101, 199850197), (397, 50843501), (509, 39655933), (989, 20409373), (2323, 8689139), (4343, 4647679), (9131, 2210587), (11707, 1724171), (17071, 1182407), (21887, 922231), (40097, 503401), (51409, 392633), (99889, 202073)]