20973918

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 29345442

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 89, 93, 178, 181, 186, 217, 267, 362, 434, 534, 543, 623, 651, 1086, 1246, 1267, 1302, 1869, 2534, 2759, 3738, 3801, 5518, 5611, 7602, 8277, 11222, 16109, 16554, 16833, 19313, 32218, 33666, 38626, 39277, 48327, 57939, 78554, 96654, 112763, 115878, 117831, 225526, 235662, 338289, 499379, 676578, 998758, 1498137, 2996274, 3495653, 6991306, 10486959, 20973918]

約数ペア:

[(1, 20973918), (2, 10486959), (3, 6991306), (6, 3495653), (7, 2996274), (14, 1498137), (21, 998758), (31, 676578), (42, 499379), (62, 338289), (89, 235662), (93, 225526), (178, 117831), (181, 115878), (186, 112763), (217, 96654), (267, 78554), (362, 57939), (434, 48327), (534, 39277), (543, 38626), (623, 33666), (651, 32218), (1086, 19313), (1246, 16833), (1267, 16554), (1302, 16109), (1869, 11222), (2534, 8277), (2759, 7602), (3738, 5611), (3801, 5518)]