21992823

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1068

約数の個数: 32

約数和(自身を含む): 35129600

約数和(自身を除く): 13136777

約数列:

[1, 3, 9, 19, 27, 43, 57, 129, 171, 387, 513, 817, 997, 1161, 2451, 2991, 7353, 8973, 18943, 22059, 26919, 42871, 56829, 128613, 170487, 385839, 511461, 814549, 1157517, 2443647, 7330941, 21992823]

約数ペア:

[(1, 21992823), (3, 7330941), (9, 2443647), (19, 1157517), (27, 814549), (43, 511461), (57, 385839), (129, 170487), (171, 128613), (387, 56829), (513, 42871), (817, 26919), (997, 22059), (1161, 18943), (2451, 8973), (2991, 7353)]