21551756

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 19574644

約数列:

[1, 2, 4, 29, 47, 58, 59, 67, 94, 116, 118, 134, 188, 236, 268, 1363, 1711, 1943, 2726, 2773, 3149, 3422, 3886, 3953, 5452, 5546, 6298, 6844, 7772, 7906, 11092, 12596, 15812, 80417, 91321, 114637, 160834, 182642, 185791, 229274, 321668, 365284, 371582, 458548, 743164, 5387939, 10775878, 21551756]

約数ペア:

[(1, 21551756), (2, 10775878), (4, 5387939), (29, 743164), (47, 458548), (58, 371582), (59, 365284), (67, 321668), (94, 229274), (116, 185791), (118, 182642), (134, 160834), (188, 114637), (236, 91321), (268, 80417), (1363, 15812), (1711, 12596), (1943, 11092), (2726, 7906), (2773, 7772), (3149, 6844), (3422, 6298), (3886, 5546), (3953, 5452)]