21827637

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1091}}^1$

素因数の和:1135

約数の個数: 40

約数和(自身を含む): 36996960

約数和(自身を除く): 15169323

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1091, 1539, 2223, 3273, 6669, 9819, 14183, 20007, 20729, 29457, 42549, 62187, 88371, 127647, 186561, 269477, 382941, 559683, 808431, 1148823, 1679049, 2425293, 7275879, 21827637]

約数ペア:

[(1, 21827637), (3, 7275879), (9, 2425293), (13, 1679049), (19, 1148823), (27, 808431), (39, 559683), (57, 382941), (81, 269477), (117, 186561), (171, 127647), (247, 88371), (351, 62187), (513, 42549), (741, 29457), (1053, 20729), (1091, 20007), (1539, 14183), (2223, 9819), (3273, 6669)]