291208197

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{1489}}^1$

素因数の和:1705

約数の個数: 32

約数和(自身を含む): 453913600

約数和(自身を除く): 162705403

約数列:

[1, 3, 7, 21, 67, 139, 201, 417, 469, 973, 1407, 1489, 2919, 4467, 9313, 10423, 27939, 31269, 65191, 99763, 195573, 206971, 299289, 620913, 698341, 1448797, 2095023, 4346391, 13867057, 41601171, 97069399, 291208197]

約数ペア:

[(1, 291208197), (3, 97069399), (7, 41601171), (21, 13867057), (67, 4346391), (139, 2095023), (201, 1448797), (417, 698341), (469, 620913), (973, 299289), (1407, 206971), (1489, 195573), (2919, 99763), (4467, 65191), (9313, 31269), (10423, 27939)]