19212795

素因数分解:

$3^7\times 5^1\times 7^1\times {\mathrm{251}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 39674880

約数和(自身を除く): 20462085

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 251, 315, 405, 567, 729, 753, 945, 1215, 1255, 1701, 1757, 2187, 2259, 2835, 3645, 3765, 5103, 5271, 6777, 8505, 8785, 10935, 11295, 15309, 15813, 20331, 25515, 26355, 33885, 47439, 60993, 76545, 79065, 101655, 142317, 182979, 237195, 304965, 426951, 548937, 711585, 914895, 1280853, 2134755, 2744685, 3842559, 6404265, 19212795]

約数ペア:

[(1, 19212795), (3, 6404265), (5, 3842559), (7, 2744685), (9, 2134755), (15, 1280853), (21, 914895), (27, 711585), (35, 548937), (45, 426951), (63, 304965), (81, 237195), (105, 182979), (135, 142317), (189, 101655), (243, 79065), (251, 76545), (315, 60993), (405, 47439), (567, 33885), (729, 26355), (753, 25515), (945, 20331), (1215, 15813), (1255, 15309), (1701, 11295), (1757, 10935), (2187, 8785), (2259, 8505), (2835, 6777), (3645, 5271), (3765, 5103)]