20568163

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 27141120

約数和(自身を除く): 6572957

約数列:

[1, 7, 11, 29, 61, 77, 151, 203, 319, 427, 671, 1057, 1661, 1769, 2233, 4379, 4697, 9211, 11627, 12383, 19459, 30653, 48169, 64477, 101321, 136213, 267119, 337183, 709247, 1869833, 2938309, 20568163]

約数ペア:

[(1, 20568163), (7, 2938309), (11, 1869833), (29, 709247), (61, 337183), (77, 267119), (151, 136213), (203, 101321), (319, 64477), (427, 48169), (671, 30653), (1057, 19459), (1661, 12383), (1769, 11627), (2233, 9211), (4379, 4697)]