20023311

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:125

約数の個数: 64

約数和(自身を含む): 35712000

約数和(自身を除く): 15688689

約数列:

[1, 3, 7, 11, 21, 29, 33, 49, 61, 77, 87, 147, 183, 203, 231, 319, 343, 427, 539, 609, 671, 957, 1029, 1281, 1421, 1617, 1769, 2013, 2233, 2989, 3773, 4263, 4697, 5307, 6699, 8967, 9947, 11319, 12383, 14091, 15631, 19459, 20923, 29841, 32879, 37149, 46893, 58377, 62769, 86681, 98637, 109417, 136213, 230153, 260043, 328251, 408639, 606767, 690459, 953491, 1820301, 2860473, 6674437, 20023311]

約数ペア:

[(1, 20023311), (3, 6674437), (7, 2860473), (11, 1820301), (21, 953491), (29, 690459), (33, 606767), (49, 408639), (61, 328251), (77, 260043), (87, 230153), (147, 136213), (183, 109417), (203, 98637), (231, 86681), (319, 62769), (343, 58377), (427, 46893), (539, 37149), (609, 32879), (671, 29841), (957, 20923), (1029, 19459), (1281, 15631), (1421, 14091), (1617, 12383), (1769, 11319), (2013, 9947), (2233, 8967), (2989, 6699), (3773, 5307), (4263, 4697)]