18682965

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 38858040

約数和(自身を除く): 20175075

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 49, 63, 105, 111, 147, 185, 229, 245, 259, 315, 333, 441, 555, 687, 735, 777, 1145, 1295, 1603, 1665, 1813, 2061, 2205, 2331, 3435, 3885, 4809, 5439, 8015, 8473, 9065, 10305, 11221, 11655, 14427, 16317, 24045, 25419, 27195, 33663, 42365, 56105, 59311, 72135, 76257, 81585, 100989, 127095, 168315, 177933, 296555, 381285, 415177, 504945, 533799, 889665, 1245531, 2075885, 2668995, 3736593, 6227655, 18682965]

約数ペア:

[(1, 18682965), (3, 6227655), (5, 3736593), (7, 2668995), (9, 2075885), (15, 1245531), (21, 889665), (35, 533799), (37, 504945), (45, 415177), (49, 381285), (63, 296555), (105, 177933), (111, 168315), (147, 127095), (185, 100989), (229, 81585), (245, 76257), (259, 72135), (315, 59311), (333, 56105), (441, 42365), (555, 33663), (687, 27195), (735, 25419), (777, 24045), (1145, 16317), (1295, 14427), (1603, 11655), (1665, 11221), (1813, 10305), (2061, 9065), (2205, 8473), (2331, 8015), (3435, 5439), (3885, 4809)]