18280977

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1061

約数の個数: 32

約数和(自身を含む): 29331456

約数和(自身を除く): 11050479

約数列:

[1, 3, 11, 13, 33, 39, 43, 129, 143, 429, 473, 559, 991, 1419, 1677, 2973, 6149, 10901, 12883, 18447, 32703, 38649, 42613, 127839, 141713, 425139, 468743, 553969, 1406229, 1661907, 6093659, 18280977]

約数ペア:

[(1, 18280977), (3, 6093659), (11, 1661907), (13, 1406229), (33, 553969), (39, 468743), (43, 425139), (129, 141713), (143, 127839), (429, 42613), (473, 38649), (559, 32703), (991, 18447), (1419, 12883), (1677, 10901), (2973, 6149)]