78561847

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:272

約数の個数: 36

約数和(自身を含む): 101389320

約数和(自身を除く): 22827473

約数列:

[1, 7, 13, 49, 53, 91, 169, 179, 371, 637, 689, 1183, 1253, 2327, 2597, 4823, 8281, 8771, 8957, 9487, 16289, 30251, 33761, 62699, 66409, 114023, 123331, 211757, 438893, 464863, 863317, 1482299, 1603303, 6043219, 11223121, 78561847]

約数ペア:

[(1, 78561847), (7, 11223121), (13, 6043219), (49, 1603303), (53, 1482299), (91, 863317), (169, 464863), (179, 438893), (371, 211757), (637, 123331), (689, 114023), (1183, 66409), (1253, 62699), (2327, 33761), (2597, 30251), (4823, 16289), (8281, 9487), (8771, 8957)]