21219276

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7159}}^1$

素因数の和:7198

約数の個数: 48

約数和(自身を含む): 56134400

約数和(自身を除く): 34915124

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 7159, 14318, 21477, 28636, 42954, 85908, 93067, 136021, 186134, 272042, 279201, 372268, 408063, 544084, 558402, 816126, 1116804, 1632252, 1768273, 3536546, 5304819, 7073092, 10609638, 21219276]

約数ペア:

[(1, 21219276), (2, 10609638), (3, 7073092), (4, 5304819), (6, 3536546), (12, 1768273), (13, 1632252), (19, 1116804), (26, 816126), (38, 558402), (39, 544084), (52, 408063), (57, 372268), (76, 279201), (78, 272042), (114, 186134), (156, 136021), (228, 93067), (247, 85908), (494, 42954), (741, 28636), (988, 21477), (1482, 14318), (2964, 7159)]