87561994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^3\times {\mathrm{491}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 149607360

約数和(自身を除く): 62045366

約数列:

[1, 2, 13, 19, 26, 38, 247, 361, 491, 494, 722, 982, 4693, 6383, 6859, 9329, 9386, 12766, 13718, 18658, 89167, 121277, 177251, 178334, 242554, 354502, 2304263, 3367769, 4608526, 6735538, 43780997, 87561994]

約数ペア:

[(1, 87561994), (2, 43780997), (13, 6735538), (19, 4608526), (26, 3367769), (38, 2304263), (247, 354502), (361, 242554), (491, 178334), (494, 177251), (722, 121277), (982, 89167), (4693, 18658), (6383, 13718), (6859, 12766), (9329, 9386)]