213706801

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 275466240

約数和(自身を除く): 61759439

約数列:

[1, 7, 11, 41, 77, 139, 287, 451, 487, 973, 1529, 3157, 3409, 5357, 5699, 10703, 19967, 37499, 39893, 62689, 67693, 139769, 219637, 438823, 473851, 744623, 1537459, 2775413, 5212361, 19427891, 30529543, 213706801]

約数ペア:

[(1, 213706801), (7, 30529543), (11, 19427891), (41, 5212361), (77, 2775413), (139, 1537459), (287, 744623), (451, 473851), (487, 438823), (973, 219637), (1529, 139769), (3157, 67693), (3409, 62689), (5357, 39893), (5699, 37499), (10703, 19967)]