21910743

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:673

約数の個数: 40

約数和(自身を含む): 36009600

約数和(自身を除く): 14098857

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 81, 171, 207, 437, 513, 619, 621, 1311, 1539, 1857, 1863, 3933, 5571, 11761, 11799, 14237, 16713, 35283, 35397, 42711, 50139, 105849, 128133, 270503, 317547, 384399, 811509, 952641, 1153197, 2434527, 7303581, 21910743]

約数ペア:

[(1, 21910743), (3, 7303581), (9, 2434527), (19, 1153197), (23, 952641), (27, 811509), (57, 384399), (69, 317547), (81, 270503), (171, 128133), (207, 105849), (437, 50139), (513, 42711), (619, 35397), (621, 35283), (1311, 16713), (1539, 14237), (1857, 11799), (1863, 11761), (3933, 5571)]