28664141

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 6587059

約数列:

[1, 11, 19, 23, 67, 89, 209, 253, 437, 737, 979, 1273, 1541, 1691, 2047, 4807, 5963, 14003, 16951, 18601, 22517, 29279, 38893, 65593, 113297, 137149, 322069, 427823, 1246267, 1508639, 2605831, 28664141]

約数ペア:

[(1, 28664141), (11, 2605831), (19, 1508639), (23, 1246267), (67, 427823), (89, 322069), (209, 137149), (253, 113297), (437, 65593), (737, 38893), (979, 29279), (1273, 22517), (1541, 18601), (1691, 16951), (2047, 14003), (4807, 5963)]