21288474

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20749}}^1$

素因数の和:20779

約数の個数: 32

約数和(自身を含む): 49800000

約数和(自身を除く): 28511526

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20749, 41498, 62247, 124494, 186741, 373482, 394231, 560223, 788462, 1120446, 1182693, 2365386, 3548079, 7096158, 10644237, 21288474]

約数ペア:

[(1, 21288474), (2, 10644237), (3, 7096158), (6, 3548079), (9, 2365386), (18, 1182693), (19, 1120446), (27, 788462), (38, 560223), (54, 394231), (57, 373482), (114, 186741), (171, 124494), (342, 62247), (513, 41498), (1026, 20749)]