291220828

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{21407}}^1$

素因数の和:21609

約数の個数: 24

約数和(自身を含む): 539481600

約数和(自身を除く): 248260772

約数列:

[1, 2, 4, 19, 38, 76, 179, 358, 716, 3401, 6802, 13604, 21407, 42814, 85628, 406733, 813466, 1626932, 3831853, 7663706, 15327412, 72805207, 145610414, 291220828]

約数ペア:

[(1, 291220828), (2, 145610414), (4, 72805207), (19, 15327412), (38, 7663706), (76, 3831853), (179, 1626932), (358, 813466), (716, 406733), (3401, 85628), (6802, 42814), (13604, 21407)]