16421847

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 26406912

約数和(自身を除く): 9985065

約数列:

[1, 3, 13, 17, 31, 39, 47, 51, 93, 141, 221, 289, 403, 527, 611, 663, 799, 867, 1209, 1457, 1581, 1833, 2397, 3757, 4371, 6851, 8959, 10387, 11271, 13583, 18941, 20553, 24769, 26877, 31161, 40749, 56823, 74307, 116467, 176579, 321997, 349401, 421073, 529737, 965991, 1263219, 5473949, 16421847]

約数ペア:

[(1, 16421847), (3, 5473949), (13, 1263219), (17, 965991), (31, 529737), (39, 421073), (47, 349401), (51, 321997), (93, 176579), (141, 116467), (221, 74307), (289, 56823), (403, 40749), (527, 31161), (611, 26877), (663, 24769), (799, 20553), (867, 18941), (1209, 13583), (1457, 11271), (1581, 10387), (1833, 8959), (2397, 6851), (3757, 4371)]