163845721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 196116480

約数和(自身を除く): 32270759

約数列:

[1, 13, 19, 23, 151, 191, 247, 299, 437, 1963, 2483, 2869, 3473, 3629, 4393, 5681, 28841, 37297, 45149, 47177, 57109, 65987, 83467, 374933, 547979, 663343, 857831, 1085071, 7123727, 8623459, 12603517, 163845721]

約数ペア:

[(1, 163845721), (13, 12603517), (19, 8623459), (23, 7123727), (151, 1085071), (191, 857831), (247, 663343), (299, 547979), (437, 374933), (1963, 83467), (2483, 65987), (2869, 57109), (3473, 47177), (3629, 45149), (4393, 37297), (5681, 28841)]