21564738

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 55339200

約数和(自身を除く): 33774462

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 102, 117, 139, 153, 169, 221, 234, 278, 306, 338, 351, 417, 442, 459, 507, 663, 702, 834, 918, 1014, 1251, 1326, 1521, 1807, 1989, 2363, 2502, 2873, 3042, 3614, 3753, 3978, 4563, 4726, 5421, 5746, 5967, 7089, 7506, 8619, 9126, 10842, 11934, 14178, 16263, 17238, 21267, 23491, 25857, 30719, 32526, 42534, 46982, 48789, 51714, 61438, 63801, 70473, 77571, 92157, 97578, 127602, 140946, 155142, 184314, 211419, 276471, 399347, 422838, 552942, 634257, 798694, 829413, 1198041, 1268514, 1658826, 2396082, 3594123, 7188246, 10782369, 21564738]

約数ペア:

[(1, 21564738), (2, 10782369), (3, 7188246), (6, 3594123), (9, 2396082), (13, 1658826), (17, 1268514), (18, 1198041), (26, 829413), (27, 798694), (34, 634257), (39, 552942), (51, 422838), (54, 399347), (78, 276471), (102, 211419), (117, 184314), (139, 155142), (153, 140946), (169, 127602), (221, 97578), (234, 92157), (278, 77571), (306, 70473), (338, 63801), (351, 61438), (417, 51714), (442, 48789), (459, 46982), (507, 42534), (663, 32526), (702, 30719), (834, 25857), (918, 23491), (1014, 21267), (1251, 17238), (1326, 16263), (1521, 14178), (1807, 11934), (1989, 10842), (2363, 9126), (2502, 8619), (2873, 7506), (3042, 7089), (3614, 5967), (3753, 5746), (3978, 5421), (4563, 4726)]