31306639

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:117

約数の個数: 40

約数和(自身を含む): 42351120

約数和(自身を除く): 11044481

約数列:

[1, 7, 13, 17, 49, 59, 91, 119, 221, 343, 413, 637, 767, 833, 1003, 1547, 2401, 2891, 4459, 5369, 5831, 7021, 10829, 13039, 20237, 31213, 37583, 40817, 49147, 75803, 91273, 141659, 263081, 344029, 530621, 638911, 1841567, 2408203, 4472377, 31306639]

約数ペア:

[(1, 31306639), (7, 4472377), (13, 2408203), (17, 1841567), (49, 638911), (59, 530621), (91, 344029), (119, 263081), (221, 141659), (343, 91273), (413, 75803), (637, 49147), (767, 40817), (833, 37583), (1003, 31213), (1547, 20237), (2401, 13039), (2891, 10829), (4459, 7021), (5369, 5831)]