291258561

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{907}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 437234688

約数和(自身を除く): 145976127

約数列:

[1, 3, 11, 33, 37, 111, 263, 407, 789, 907, 1221, 2721, 2893, 8679, 9731, 9977, 29193, 29931, 33559, 100677, 107041, 238541, 321123, 369149, 715623, 1107447, 2623951, 7871853, 8826017, 26478051, 97086187, 291258561]

約数ペア:

[(1, 291258561), (3, 97086187), (11, 26478051), (33, 8826017), (37, 7871853), (111, 2623951), (263, 1107447), (407, 715623), (789, 369149), (907, 321123), (1221, 238541), (2721, 107041), (2893, 100677), (8679, 33559), (9731, 29931), (9977, 29193)]