21519702

素因数分解:

$2^1\times 3^3\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 49996800

約数和(自身を除く): 28477098

約数列:

[1, 2, 3, 6, 9, 18, 27, 47, 54, 61, 94, 122, 139, 141, 183, 278, 282, 366, 417, 423, 549, 834, 846, 1098, 1251, 1269, 1647, 2502, 2538, 2867, 3294, 3753, 5734, 6533, 7506, 8479, 8601, 13066, 16958, 17202, 19599, 25437, 25803, 39198, 50874, 51606, 58797, 76311, 77409, 117594, 152622, 154818, 176391, 228933, 352782, 398513, 457866, 797026, 1195539, 2391078, 3586617, 7173234, 10759851, 21519702]

約数ペア:

[(1, 21519702), (2, 10759851), (3, 7173234), (6, 3586617), (9, 2391078), (18, 1195539), (27, 797026), (47, 457866), (54, 398513), (61, 352782), (94, 228933), (122, 176391), (139, 154818), (141, 152622), (183, 117594), (278, 77409), (282, 76311), (366, 58797), (417, 51606), (423, 50874), (549, 39198), (834, 25803), (846, 25437), (1098, 19599), (1251, 17202), (1269, 16958), (1647, 13066), (2502, 8601), (2538, 8479), (2867, 7506), (3294, 6533), (3753, 5734)]