39778921

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 51609600

約数和(自身を除く): 11830679

約数列:

[1, 7, 13, 31, 59, 91, 217, 239, 403, 413, 767, 1673, 1829, 2821, 3107, 5369, 7409, 12803, 14101, 21749, 23777, 51863, 96317, 98707, 166439, 183313, 437131, 674219, 1283191, 3059917, 5682703, 39778921]

約数ペア:

[(1, 39778921), (7, 5682703), (13, 3059917), (31, 1283191), (59, 674219), (91, 437131), (217, 183313), (239, 166439), (403, 98707), (413, 96317), (767, 51863), (1673, 23777), (1829, 21749), (2821, 14101), (3107, 12803), (5369, 7409)]