28082133

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:359

約数の個数: 40

約数和(自身を含む): 44953920

約数和(自身を除く): 16871787

約数列:

[1, 3, 9, 19, 27, 57, 71, 81, 171, 213, 257, 513, 639, 771, 1349, 1539, 1917, 2313, 4047, 4883, 5751, 6939, 12141, 14649, 18247, 20817, 36423, 43947, 54741, 109269, 131841, 164223, 346693, 395523, 492669, 1040079, 1478007, 3120237, 9360711, 28082133]

約数ペア:

[(1, 28082133), (3, 9360711), (9, 3120237), (19, 1478007), (27, 1040079), (57, 492669), (71, 395523), (81, 346693), (171, 164223), (213, 131841), (257, 109269), (513, 54741), (639, 43947), (771, 36423), (1349, 20817), (1539, 18247), (1917, 14649), (2313, 12141), (4047, 6939), (4883, 5751)]