128915289

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{3833}}^1$

素因数の和:3977

約数の個数: 24

約数和(自身を含む): 193187592

約数和(自身を除く): 64272303

約数列:

[1, 3, 9, 37, 101, 111, 303, 333, 909, 3737, 3833, 11211, 11499, 33633, 34497, 141821, 387133, 425463, 1161399, 1276389, 3484197, 14323921, 42971763, 128915289]

約数ペア:

[(1, 128915289), (3, 42971763), (9, 14323921), (37, 3484197), (101, 1276389), (111, 1161399), (303, 425463), (333, 387133), (909, 141821), (3737, 34497), (3833, 33633), (11211, 11499)]