21406473

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{1787}}^1$

素因数の和:1826

約数の個数: 24

約数和(自身を含む): 34029216

約数和(自身を除く): 12622743

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 1331, 1787, 3993, 5361, 11979, 16083, 19657, 58971, 176913, 216227, 648681, 1946043, 2378497, 7135491, 21406473]

約数ペア:

[(1, 21406473), (3, 7135491), (9, 2378497), (11, 1946043), (33, 648681), (99, 216227), (121, 176913), (363, 58971), (1089, 19657), (1331, 16083), (1787, 11979), (3993, 5361)]