397392387

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{1427}}^1$

素因数の和:1675

約数の個数: 32

約数和(自身を含む): 616896000

約数和(自身を除く): 219503613

約数列:

[1, 3, 7, 21, 89, 149, 267, 447, 623, 1043, 1427, 1869, 3129, 4281, 9989, 13261, 29967, 39783, 92827, 127003, 212623, 278481, 381009, 637869, 889021, 1488361, 2667063, 4465083, 18923447, 56770341, 132464129, 397392387]

約数ペア:

[(1, 397392387), (3, 132464129), (7, 56770341), (21, 18923447), (89, 4465083), (149, 2667063), (267, 1488361), (447, 889021), (623, 637869), (1043, 381009), (1427, 278481), (1869, 212623), (3129, 127003), (4281, 92827), (9989, 39783), (13261, 29967)]