20121866842

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{617}}^1\times {\mathrm{12457}}^1$

素因数の和:13111

約数の個数: 64

約数和(自身を含む): 39911844096

約数和(自身を除く): 19789977254

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 119, 154, 187, 238, 374, 617, 1234, 1309, 2618, 4319, 6787, 8638, 10489, 12457, 13574, 20978, 24914, 47509, 73423, 87199, 95018, 115379, 137027, 146846, 174398, 211769, 230758, 274054, 423538, 807653, 959189, 1482383, 1615306, 1918378, 2329459, 2964766, 4658918, 7685969, 15371938, 16306213, 32612426, 53801783, 84545659, 107603566, 130661473, 169091318, 261322946, 591819613, 914630311, 1183639226, 1437276203, 1829260622, 2874552406, 10060933421, 20121866842]

約数ペア:

[(1, 20121866842), (2, 10060933421), (7, 2874552406), (11, 1829260622), (14, 1437276203), (17, 1183639226), (22, 914630311), (34, 591819613), (77, 261322946), (119, 169091318), (154, 130661473), (187, 107603566), (238, 84545659), (374, 53801783), (617, 32612426), (1234, 16306213), (1309, 15371938), (2618, 7685969), (4319, 4658918), (6787, 2964766), (8638, 2329459), (10489, 1918378), (12457, 1615306), (13574, 1482383), (20978, 959189), (24914, 807653), (47509, 423538), (73423, 274054), (87199, 230758), (95018, 211769), (115379, 174398), (137027, 146846)]