20993688

素因数分解:

$2^3\times 3^3\times {\mathrm{83}}^1\times {\mathrm{1171}}^1$

素因数の和:1269

約数の個数: 64

約数和(自身を含む): 59068800

約数和(自身を除く): 38075112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 83, 108, 166, 216, 249, 332, 498, 664, 747, 996, 1171, 1494, 1992, 2241, 2342, 2988, 3513, 4482, 4684, 5976, 7026, 8964, 9368, 10539, 14052, 17928, 21078, 28104, 31617, 42156, 63234, 84312, 97193, 126468, 194386, 252936, 291579, 388772, 583158, 777544, 874737, 1166316, 1749474, 2332632, 2624211, 3498948, 5248422, 6997896, 10496844, 20993688]

約数ペア:

[(1, 20993688), (2, 10496844), (3, 6997896), (4, 5248422), (6, 3498948), (8, 2624211), (9, 2332632), (12, 1749474), (18, 1166316), (24, 874737), (27, 777544), (36, 583158), (54, 388772), (72, 291579), (83, 252936), (108, 194386), (166, 126468), (216, 97193), (249, 84312), (332, 63234), (498, 42156), (664, 31617), (747, 28104), (996, 21078), (1171, 17928), (1494, 14052), (1992, 10539), (2241, 9368), (2342, 8964), (2988, 7026), (3513, 5976), (4482, 4684)]