21151036347

素因数分解:

$3^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{433}}^1\times {\mathrm{1283}}^1$

素因数の和:1777

約数の個数: 64

約数和(自身を含む): 33881164800

約数和(自身を除く): 12730128453

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 343, 433, 777, 1029, 1283, 1299, 1813, 3031, 3849, 5439, 8981, 9093, 12691, 16021, 21217, 26943, 38073, 47471, 48063, 62867, 63651, 112147, 142413, 148519, 188601, 332297, 336441, 440069, 445557, 555539, 785029, 996891, 1320207, 1666617, 2326079, 2355087, 3888773, 5495203, 6978237, 11666319, 16282553, 16485609, 20554943, 27221411, 48847659, 61664829, 81664233, 143884601, 190549877, 431653803, 571649631, 1007192207, 3021576621, 7050345449, 21151036347]

約数ペア:

[(1, 21151036347), (3, 7050345449), (7, 3021576621), (21, 1007192207), (37, 571649631), (49, 431653803), (111, 190549877), (147, 143884601), (259, 81664233), (343, 61664829), (433, 48847659), (777, 27221411), (1029, 20554943), (1283, 16485609), (1299, 16282553), (1813, 11666319), (3031, 6978237), (3849, 5495203), (5439, 3888773), (8981, 2355087), (9093, 2326079), (12691, 1666617), (16021, 1320207), (21217, 996891), (26943, 785029), (38073, 555539), (47471, 445557), (48063, 440069), (62867, 336441), (63651, 332297), (112147, 188601), (142413, 148519)]