19848843

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 35582976

約数和(自身を除く): 15734133

約数列:

[1, 3, 7, 9, 17, 21, 43, 51, 63, 119, 129, 153, 301, 357, 387, 431, 731, 903, 1071, 1293, 2193, 2709, 3017, 3879, 5117, 6579, 7327, 9051, 15351, 18533, 21981, 27153, 46053, 51289, 55599, 65943, 129731, 153867, 166797, 315061, 389193, 461601, 945183, 1167579, 2205427, 2835549, 6616281, 19848843]

約数ペア:

[(1, 19848843), (3, 6616281), (7, 2835549), (9, 2205427), (17, 1167579), (21, 945183), (43, 461601), (51, 389193), (63, 315061), (119, 166797), (129, 153867), (153, 129731), (301, 65943), (357, 55599), (387, 51289), (431, 46053), (731, 27153), (903, 21981), (1071, 18533), (1293, 15351), (2193, 9051), (2709, 7327), (3017, 6579), (3879, 5117)]