20199756381

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1\times {\mathrm{20747}}^1$

素因数の和:21481

約数の個数: 32

約数和(自身を含む): 31263418368

約数和(自身を除く): 11063661987

約数列:

[1, 3, 7, 21, 71, 213, 497, 653, 1491, 1959, 4571, 13713, 20747, 46363, 62241, 139089, 145229, 324541, 435687, 973623, 1473037, 4419111, 10311259, 13547791, 30933777, 40643373, 94834537, 284503611, 961893161, 2885679483, 6733252127, 20199756381]

約数ペア:

[(1, 20199756381), (3, 6733252127), (7, 2885679483), (21, 961893161), (71, 284503611), (213, 94834537), (497, 40643373), (653, 30933777), (1491, 13547791), (1959, 10311259), (4571, 4419111), (13713, 1473037), (20747, 973623), (46363, 435687), (62241, 324541), (139089, 145229)]