20836431

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 38009088

約数和(自身を除く): 17172657

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 107, 231, 281, 321, 693, 749, 843, 963, 1177, 1967, 2247, 2529, 3091, 3531, 5901, 6741, 8239, 9273, 10593, 17703, 21637, 24717, 27819, 30067, 64911, 74151, 90201, 194733, 210469, 270603, 330737, 631407, 992211, 1894221, 2315159, 2976633, 6945477, 20836431]

約数ペア:

[(1, 20836431), (3, 6945477), (7, 2976633), (9, 2315159), (11, 1894221), (21, 992211), (33, 631407), (63, 330737), (77, 270603), (99, 210469), (107, 194733), (231, 90201), (281, 74151), (321, 64911), (693, 30067), (749, 27819), (843, 24717), (963, 21637), (1177, 17703), (1967, 10593), (2247, 9273), (2529, 8239), (3091, 6741), (3531, 5901)]