28939911

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 54190080

約数和(自身を除く): 25250169

約数列:

[1, 3, 7, 11, 13, 21, 23, 33, 39, 69, 77, 91, 143, 161, 231, 253, 273, 299, 419, 429, 483, 759, 897, 1001, 1257, 1771, 2093, 2933, 3003, 3289, 4609, 5313, 5447, 6279, 8799, 9637, 9867, 13827, 16341, 23023, 28911, 32263, 38129, 59917, 67459, 69069, 96789, 106007, 114387, 125281, 179751, 202377, 318021, 375843, 419419, 742049, 876967, 1258257, 1378091, 2226147, 2630901, 4134273, 9646637, 28939911]

約数ペア:

[(1, 28939911), (3, 9646637), (7, 4134273), (11, 2630901), (13, 2226147), (21, 1378091), (23, 1258257), (33, 876967), (39, 742049), (69, 419419), (77, 375843), (91, 318021), (143, 202377), (161, 179751), (231, 125281), (253, 114387), (273, 106007), (299, 96789), (419, 69069), (429, 67459), (483, 59917), (759, 38129), (897, 32263), (1001, 28911), (1257, 23023), (1771, 16341), (2093, 13827), (2933, 9867), (3003, 9637), (3289, 8799), (4609, 6279), (5313, 5447)]