128647211

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4273}}^1$

素因数の和:4331

約数の個数: 32

約数和(自身を含む): 177251328

約数和(自身を除く): 48604117

約数列:

[1, 7, 11, 17, 23, 77, 119, 161, 187, 253, 391, 1309, 1771, 2737, 4273, 4301, 29911, 30107, 47003, 72641, 98279, 329021, 508487, 687953, 799051, 1081069, 1670743, 5593357, 7567483, 11695201, 18378173, 128647211]

約数ペア:

[(1, 128647211), (7, 18378173), (11, 11695201), (17, 7567483), (23, 5593357), (77, 1670743), (119, 1081069), (161, 799051), (187, 687953), (253, 508487), (391, 329021), (1309, 98279), (1771, 72641), (2737, 47003), (4273, 30107), (4301, 29911)]