278403777

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{487}}^1\times {\mathrm{683}}^1$

素因数の和:1210

約数の個数: 32

約数和(自身を含む): 427253760

約数和(自身を除く): 148849983

約数列:

[1, 3, 9, 27, 31, 93, 279, 487, 683, 837, 1461, 2049, 4383, 6147, 13149, 15097, 18441, 21173, 45291, 63519, 135873, 190557, 332621, 407619, 571671, 997863, 2993589, 8980767, 10311251, 30933753, 92801259, 278403777]

約数ペア:

[(1, 278403777), (3, 92801259), (9, 30933753), (27, 10311251), (31, 8980767), (93, 2993589), (279, 997863), (487, 571671), (683, 407619), (837, 332621), (1461, 190557), (2049, 135873), (4383, 63519), (6147, 45291), (13149, 21173), (15097, 18441)]