291259227

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 486886400

約数和(自身を除く): 195627173

約数列:

[1, 3, 7, 19, 21, 37, 57, 109, 111, 133, 181, 259, 327, 399, 543, 703, 763, 777, 1267, 2071, 2109, 2289, 3439, 3801, 4033, 4921, 6213, 6697, 10317, 12099, 14497, 14763, 19729, 20091, 24073, 28231, 43491, 46879, 59187, 72219, 76627, 84693, 127243, 138103, 140637, 229881, 374851, 381729, 414309, 536389, 729973, 890701, 1124553, 1609167, 2189919, 2623957, 2672103, 5109811, 7871871, 13869487, 15329433, 41608461, 97086409, 291259227]

約数ペア:

[(1, 291259227), (3, 97086409), (7, 41608461), (19, 15329433), (21, 13869487), (37, 7871871), (57, 5109811), (109, 2672103), (111, 2623957), (133, 2189919), (181, 1609167), (259, 1124553), (327, 890701), (399, 729973), (543, 536389), (703, 414309), (763, 381729), (777, 374851), (1267, 229881), (2071, 140637), (2109, 138103), (2289, 127243), (3439, 84693), (3801, 76627), (4033, 72219), (4921, 59187), (6213, 46879), (6697, 43491), (10317, 28231), (12099, 24073), (14497, 20091), (14763, 19729)]