21321183

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{7489}}^1$

素因数の和:7578

約数の個数: 16

約数和(自身を含む): 31038560

約数和(自身を除く): 9717377

約数列:

[1, 3, 13, 39, 73, 219, 949, 2847, 7489, 22467, 97357, 292071, 546697, 1640091, 7107061, 21321183]

約数ペア:

[(1, 21321183), (3, 7107061), (13, 1640091), (39, 546697), (73, 292071), (219, 97357), (949, 22467), (2847, 7489)]