20615133

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 37601760

約数和(自身を除く): 16986627

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 61, 77, 121, 133, 147, 183, 209, 231, 363, 399, 427, 539, 627, 671, 847, 931, 1159, 1281, 1463, 1617, 2013, 2299, 2541, 2793, 2989, 3477, 4389, 4697, 5929, 6897, 7381, 8113, 8967, 10241, 12749, 14091, 16093, 17787, 22143, 24339, 30723, 32879, 38247, 48279, 51667, 56791, 89243, 98637, 112651, 140239, 155001, 170373, 267729, 337953, 361669, 420717, 624701, 981673, 1085007, 1874103, 2945019, 6871711, 20615133]

約数ペア:

[(1, 20615133), (3, 6871711), (7, 2945019), (11, 1874103), (19, 1085007), (21, 981673), (33, 624701), (49, 420717), (57, 361669), (61, 337953), (77, 267729), (121, 170373), (133, 155001), (147, 140239), (183, 112651), (209, 98637), (231, 89243), (363, 56791), (399, 51667), (427, 48279), (539, 38247), (627, 32879), (671, 30723), (847, 24339), (931, 22143), (1159, 17787), (1281, 16093), (1463, 14091), (1617, 12749), (2013, 10241), (2299, 8967), (2541, 8113), (2793, 7381), (2989, 6897), (3477, 5929), (4389, 4697)]