28790503

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 37131264

約数和(自身を除く): 8340761

約数列:

[1, 7, 17, 23, 67, 119, 157, 161, 391, 469, 1099, 1139, 1541, 2669, 2737, 3611, 7973, 10519, 10787, 18683, 25277, 26197, 61387, 73633, 178823, 183379, 241937, 429709, 1251761, 1693559, 4112929, 28790503]

約数ペア:

[(1, 28790503), (7, 4112929), (17, 1693559), (23, 1251761), (67, 429709), (119, 241937), (157, 183379), (161, 178823), (391, 73633), (469, 61387), (1099, 26197), (1139, 25277), (1541, 18683), (2669, 10787), (2737, 10519), (3611, 7973)]