28202391

素因数分解:

$3^3\times 7^2\times {\mathrm{21317}}^1$

素因数の和:21340

約数の個数: 24

約数和(自身を含む): 48605040

約数和(自身を除く): 20402649

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 21317, 63951, 149219, 191853, 447657, 575559, 1044533, 1342971, 3133599, 4028913, 9400797, 28202391]

約数ペア:

[(1, 28202391), (3, 9400797), (7, 4028913), (9, 3133599), (21, 1342971), (27, 1044533), (49, 575559), (63, 447657), (147, 191853), (189, 149219), (441, 63951), (1323, 21317)]