21425352

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1597}}^1$

素因数の和:1662

約数の個数: 64

約数和(自身を含む): 59062080

約数和(自身を除く): 37636728

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 43, 52, 78, 86, 104, 129, 156, 172, 258, 312, 344, 516, 559, 1032, 1118, 1597, 1677, 2236, 3194, 3354, 4472, 4791, 6388, 6708, 9582, 12776, 13416, 19164, 20761, 38328, 41522, 62283, 68671, 83044, 124566, 137342, 166088, 206013, 249132, 274684, 412026, 498264, 549368, 824052, 892723, 1648104, 1785446, 2678169, 3570892, 5356338, 7141784, 10712676, 21425352]

約数ペア:

[(1, 21425352), (2, 10712676), (3, 7141784), (4, 5356338), (6, 3570892), (8, 2678169), (12, 1785446), (13, 1648104), (24, 892723), (26, 824052), (39, 549368), (43, 498264), (52, 412026), (78, 274684), (86, 249132), (104, 206013), (129, 166088), (156, 137342), (172, 124566), (258, 83044), (312, 68671), (344, 62283), (516, 41522), (559, 38328), (1032, 20761), (1118, 19164), (1597, 13416), (1677, 12776), (2236, 9582), (3194, 6708), (3354, 6388), (4472, 4791)]