21593757

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 11065443

約数列:

[1, 3, 17, 23, 41, 51, 69, 123, 391, 449, 697, 943, 1173, 1347, 2091, 2829, 7633, 10327, 16031, 18409, 22899, 30981, 48093, 55227, 175559, 312953, 423407, 526677, 938859, 1270221, 7197919, 21593757]

約数ペア:

[(1, 21593757), (3, 7197919), (17, 1270221), (23, 938859), (41, 526677), (51, 423407), (69, 312953), (123, 175559), (391, 55227), (449, 48093), (697, 30981), (943, 22899), (1173, 18409), (1347, 16031), (2091, 10327), (2829, 7633)]