21419685

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1283}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 43265664

約数和(自身を除く): 21845979

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 53, 63, 105, 159, 265, 315, 371, 477, 795, 1113, 1283, 1855, 2385, 3339, 3849, 5565, 6415, 8981, 11547, 16695, 19245, 26943, 44905, 57735, 67999, 80829, 134715, 203997, 339995, 404145, 475993, 611991, 1019985, 1427979, 2379965, 3059955, 4283937, 7139895, 21419685]

約数ペア:

[(1, 21419685), (3, 7139895), (5, 4283937), (7, 3059955), (9, 2379965), (15, 1427979), (21, 1019985), (35, 611991), (45, 475993), (53, 404145), (63, 339995), (105, 203997), (159, 134715), (265, 80829), (315, 67999), (371, 57735), (477, 44905), (795, 26943), (1113, 19245), (1283, 16695), (1855, 11547), (2385, 8981), (3339, 6415), (3849, 5565)]