20591538

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 45849888

約数和(自身を除く): 25258350

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 113, 121, 226, 242, 251, 339, 363, 502, 678, 726, 753, 1243, 1506, 2486, 2761, 3729, 5522, 7458, 8283, 13673, 16566, 27346, 28363, 30371, 41019, 56726, 60742, 82038, 85089, 91113, 170178, 182226, 311993, 623986, 935979, 1871958, 3431923, 6863846, 10295769, 20591538]

約数ペア:

[(1, 20591538), (2, 10295769), (3, 6863846), (6, 3431923), (11, 1871958), (22, 935979), (33, 623986), (66, 311993), (113, 182226), (121, 170178), (226, 91113), (242, 85089), (251, 82038), (339, 60742), (363, 56726), (502, 41019), (678, 30371), (726, 28363), (753, 27346), (1243, 16566), (1506, 13673), (2486, 8283), (2761, 7458), (3729, 5522)]