213263253

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{7573}}^1$

素因数の和:7738

約数の個数: 32

約数和(自身を含む): 363552000

約数和(自身を除く): 150288747

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 1043, 1341, 3129, 4023, 7573, 9387, 22719, 28161, 53011, 68157, 159033, 204471, 477099, 1128377, 1431297, 3385131, 7898639, 10155393, 23695917, 30466179, 71087751, 213263253]

約数ペア:

[(1, 213263253), (3, 71087751), (7, 30466179), (9, 23695917), (21, 10155393), (27, 7898639), (63, 3385131), (149, 1431297), (189, 1128377), (447, 477099), (1043, 204471), (1341, 159033), (3129, 68157), (4023, 53011), (7573, 28161), (9387, 22719)]