21104028

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:547

約数の個数: 72

約数和(自身を含む): 58771440

約数和(自身を除く): 37667412

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 137, 198, 274, 389, 396, 411, 548, 778, 822, 1167, 1233, 1507, 1556, 1644, 2334, 2466, 3014, 3501, 4279, 4521, 4668, 4932, 6028, 7002, 8558, 9042, 12837, 13563, 14004, 17116, 18084, 25674, 27126, 38511, 51348, 53293, 54252, 77022, 106586, 154044, 159879, 213172, 319758, 479637, 586223, 639516, 959274, 1172446, 1758669, 1918548, 2344892, 3517338, 5276007, 7034676, 10552014, 21104028]

約数ペア:

[(1, 21104028), (2, 10552014), (3, 7034676), (4, 5276007), (6, 3517338), (9, 2344892), (11, 1918548), (12, 1758669), (18, 1172446), (22, 959274), (33, 639516), (36, 586223), (44, 479637), (66, 319758), (99, 213172), (132, 159879), (137, 154044), (198, 106586), (274, 77022), (389, 54252), (396, 53293), (411, 51348), (548, 38511), (778, 27126), (822, 25674), (1167, 18084), (1233, 17116), (1507, 14004), (1556, 13563), (1644, 12837), (2334, 9042), (2466, 8558), (3014, 7002), (3501, 6028), (4279, 4932), (4521, 4668)]