16980579

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 31000320

約数和(自身を除く): 14019741

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 107, 229, 231, 321, 687, 693, 749, 963, 1177, 1603, 2061, 2247, 2519, 3531, 4809, 6741, 7557, 8239, 10593, 14427, 17633, 22671, 24503, 24717, 52899, 73509, 74151, 158697, 171521, 220527, 269533, 514563, 808599, 1543689, 1886731, 2425797, 5660193, 16980579]

約数ペア:

[(1, 16980579), (3, 5660193), (7, 2425797), (9, 1886731), (11, 1543689), (21, 808599), (33, 514563), (63, 269533), (77, 220527), (99, 171521), (107, 158697), (229, 74151), (231, 73509), (321, 52899), (687, 24717), (693, 24503), (749, 22671), (963, 17633), (1177, 14427), (1603, 10593), (2061, 8239), (2247, 7557), (2519, 6741), (3531, 4809)]