18778864017

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:574

約数の個数: 64

約数和(自身を含む): 26860584960

約数和(自身を除く): 8081720943

約数列:

[1, 3, 31, 53, 93, 127, 131, 159, 229, 381, 393, 687, 1643, 3937, 4061, 4929, 6731, 6943, 7099, 11811, 12137, 12183, 16637, 20193, 20829, 21297, 29083, 29999, 36411, 49911, 87249, 89997, 208661, 215233, 376247, 515747, 625983, 645699, 881761, 901573, 929969, 1128741, 1541399, 1547241, 1589947, 2645283, 2704719, 2789907, 3809873, 4624197, 4769841, 11429619, 27334591, 47783369, 49288357, 82003773, 118106063, 143350107, 147865071, 201923269, 354318189, 605769807, 6259621339, 18778864017]

約数ペア:

[(1, 18778864017), (3, 6259621339), (31, 605769807), (53, 354318189), (93, 201923269), (127, 147865071), (131, 143350107), (159, 118106063), (229, 82003773), (381, 49288357), (393, 47783369), (687, 27334591), (1643, 11429619), (3937, 4769841), (4061, 4624197), (4929, 3809873), (6731, 2789907), (6943, 2704719), (7099, 2645283), (11811, 1589947), (12137, 1547241), (12183, 1541399), (16637, 1128741), (20193, 929969), (20829, 901573), (21297, 881761), (29083, 645699), (29999, 625983), (36411, 515747), (49911, 376247), (87249, 215233), (89997, 208661)]