20211287562

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{19597}}^1$

素因数の和:19948

約数の個数: 64

約数和(自身を含む): 45718214400

約数和(自身を除く): 25506926838

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 142, 213, 269, 426, 538, 639, 807, 1278, 1614, 1917, 2421, 3834, 4842, 7263, 14526, 19099, 19597, 38198, 39194, 57297, 58791, 114594, 117582, 171891, 176373, 343782, 352746, 515673, 529119, 1031346, 1058238, 1391387, 2782774, 4174161, 5271593, 8348322, 10543186, 12522483, 15814779, 25044966, 31629558, 37567449, 47444337, 75134898, 94888674, 142333011, 284666022, 374283103, 748566206, 1122849309, 2245698618, 3368547927, 6737095854, 10105643781, 20211287562]

約数ペア:

[(1, 20211287562), (2, 10105643781), (3, 6737095854), (6, 3368547927), (9, 2245698618), (18, 1122849309), (27, 748566206), (54, 374283103), (71, 284666022), (142, 142333011), (213, 94888674), (269, 75134898), (426, 47444337), (538, 37567449), (639, 31629558), (807, 25044966), (1278, 15814779), (1614, 12522483), (1917, 10543186), (2421, 8348322), (3834, 5271593), (4842, 4174161), (7263, 2782774), (14526, 1391387), (19099, 1058238), (19597, 1031346), (38198, 529119), (39194, 515673), (57297, 352746), (58791, 343782), (114594, 176373), (117582, 171891)]