20602743

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 32472576

約数和(自身を除く): 11869833

約数列:

[1, 3, 7, 21, 53, 107, 159, 173, 321, 371, 519, 749, 1113, 1211, 2247, 3633, 5671, 9169, 17013, 18511, 27507, 39697, 55533, 64183, 119091, 129577, 192549, 388731, 981083, 2943249, 6867581, 20602743]

約数ペア:

[(1, 20602743), (3, 6867581), (7, 2943249), (21, 981083), (53, 388731), (107, 192549), (159, 129577), (173, 119091), (321, 64183), (371, 55533), (519, 39697), (749, 27507), (1113, 18511), (1211, 17013), (2247, 9169), (3633, 5671)]