81118917

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 136648512

約数和(自身を除く): 55529595

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 157, 187, 307, 471, 561, 921, 1413, 1683, 1727, 2669, 2763, 3377, 5181, 5219, 8007, 10131, 15543, 15657, 24021, 29359, 30393, 46971, 48199, 57409, 88077, 144597, 172227, 264231, 433791, 516681, 530189, 819383, 1590567, 2458149, 4771701, 7374447, 9013213, 27039639, 81118917]

約数ペア:

[(1, 81118917), (3, 27039639), (9, 9013213), (11, 7374447), (17, 4771701), (33, 2458149), (51, 1590567), (99, 819383), (153, 530189), (157, 516681), (187, 433791), (307, 264231), (471, 172227), (561, 144597), (921, 88077), (1413, 57409), (1683, 48199), (1727, 46971), (2669, 30393), (2763, 29359), (3377, 24021), (5181, 15657), (5219, 15543), (8007, 10131)]