20691288

素因数分解:

$2^3\times 3^4\times {\mathrm{37}}^1\times {\mathrm{863}}^1$

素因数の和:918

約数の個数: 80

約数和(自身を含む): 59590080

約数和(自身を除く): 38898792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 37, 54, 72, 74, 81, 108, 111, 148, 162, 216, 222, 296, 324, 333, 444, 648, 666, 863, 888, 999, 1332, 1726, 1998, 2589, 2664, 2997, 3452, 3996, 5178, 5994, 6904, 7767, 7992, 10356, 11988, 15534, 20712, 23301, 23976, 31068, 31931, 46602, 62136, 63862, 69903, 93204, 95793, 127724, 139806, 186408, 191586, 255448, 279612, 287379, 383172, 559224, 574758, 766344, 862137, 1149516, 1724274, 2299032, 2586411, 3448548, 5172822, 6897096, 10345644, 20691288]

約数ペア:

[(1, 20691288), (2, 10345644), (3, 6897096), (4, 5172822), (6, 3448548), (8, 2586411), (9, 2299032), (12, 1724274), (18, 1149516), (24, 862137), (27, 766344), (36, 574758), (37, 559224), (54, 383172), (72, 287379), (74, 279612), (81, 255448), (108, 191586), (111, 186408), (148, 139806), (162, 127724), (216, 95793), (222, 93204), (296, 69903), (324, 63862), (333, 62136), (444, 46602), (648, 31931), (666, 31068), (863, 23976), (888, 23301), (999, 20712), (1332, 15534), (1726, 11988), (1998, 10356), (2589, 7992), (2664, 7767), (2997, 6904), (3452, 5994), (3996, 5178)]