16871998

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:241

約数の個数: 48

約数和(自身を含む): 31102848

約数和(自身を除く): 14230850

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 121, 143, 173, 242, 286, 341, 346, 403, 682, 806, 1573, 1903, 2249, 3146, 3751, 3806, 4433, 4498, 5363, 7502, 8866, 10726, 20933, 24739, 41866, 48763, 49478, 58993, 69719, 97526, 117986, 139438, 272129, 544258, 648923, 766909, 1297846, 1533818, 8435999, 16871998]

約数ペア:

[(1, 16871998), (2, 8435999), (11, 1533818), (13, 1297846), (22, 766909), (26, 648923), (31, 544258), (62, 272129), (121, 139438), (143, 117986), (173, 97526), (242, 69719), (286, 58993), (341, 49478), (346, 48763), (403, 41866), (682, 24739), (806, 20933), (1573, 10726), (1903, 8866), (2249, 7502), (3146, 5363), (3751, 4498), (3806, 4433)]