18766718

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 12337282

約数列:

[1, 2, 19, 31, 38, 62, 89, 178, 179, 358, 589, 1178, 1691, 2759, 3382, 3401, 5518, 5549, 6802, 11098, 15931, 31862, 52421, 104842, 105431, 210862, 302689, 493861, 605378, 987722, 9383359, 18766718]

約数ペア:

[(1, 18766718), (2, 9383359), (19, 987722), (31, 605378), (38, 493861), (62, 302689), (89, 210862), (178, 105431), (179, 104842), (358, 52421), (589, 31862), (1178, 15931), (1691, 11098), (2759, 6802), (3382, 5549), (3401, 5518)]