21821373

素因数分解:

$3^3\times 7^1\times {\mathrm{263}}^1\times {\mathrm{439}}^1$

素因数の和:718

約数の個数: 32

約数和(自身を含む): 37171200

約数和(自身を除く): 15349827

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 263, 439, 789, 1317, 1841, 2367, 3073, 3951, 5523, 7101, 9219, 11853, 16569, 27657, 49707, 82971, 115457, 346371, 808199, 1039113, 2424597, 3117339, 7273791, 21821373]

約数ペア:

[(1, 21821373), (3, 7273791), (7, 3117339), (9, 2424597), (21, 1039113), (27, 808199), (63, 346371), (189, 115457), (263, 82971), (439, 49707), (789, 27657), (1317, 16569), (1841, 11853), (2367, 9219), (3073, 7101), (3951, 5523)]