19818078

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 28082082

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 53, 58, 87, 106, 159, 174, 203, 307, 318, 371, 406, 609, 614, 742, 921, 1113, 1218, 1537, 1842, 2149, 2226, 3074, 4298, 4611, 6447, 8903, 9222, 10759, 12894, 16271, 17806, 21518, 26709, 32277, 32542, 48813, 53418, 62321, 64554, 97626, 113897, 124642, 186963, 227794, 341691, 373926, 471859, 683382, 943718, 1415577, 2831154, 3303013, 6606026, 9909039, 19818078]

約数ペア:

[(1, 19818078), (2, 9909039), (3, 6606026), (6, 3303013), (7, 2831154), (14, 1415577), (21, 943718), (29, 683382), (42, 471859), (53, 373926), (58, 341691), (87, 227794), (106, 186963), (159, 124642), (174, 113897), (203, 97626), (307, 64554), (318, 62321), (371, 53418), (406, 48813), (609, 32542), (614, 32277), (742, 26709), (921, 21518), (1113, 17806), (1218, 16271), (1537, 12894), (1842, 10759), (2149, 9222), (2226, 8903), (3074, 6447), (4298, 4611)]