21789276

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 53880960

約数和(自身を除く): 32091684

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 227, 228, 421, 454, 681, 842, 908, 1263, 1362, 1684, 2526, 2724, 4313, 5052, 7999, 8626, 12939, 15998, 17252, 23997, 25878, 31996, 47994, 51756, 95567, 95988, 191134, 286701, 382268, 573402, 1146804, 1815773, 3631546, 5447319, 7263092, 10894638, 21789276]

約数ペア:

[(1, 21789276), (2, 10894638), (3, 7263092), (4, 5447319), (6, 3631546), (12, 1815773), (19, 1146804), (38, 573402), (57, 382268), (76, 286701), (114, 191134), (227, 95988), (228, 95567), (421, 51756), (454, 47994), (681, 31996), (842, 25878), (908, 23997), (1263, 17252), (1362, 15998), (1684, 12939), (2526, 8626), (2724, 7999), (4313, 5052)]