21914955

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1061}}^1$

素因数の和:1098

約数の個数: 48

約数和(自身を含む): 41749344

約数和(自身を除く): 19834389

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 1061, 1215, 1377, 2295, 3183, 4131, 5305, 6885, 9549, 15915, 18037, 20655, 28647, 47745, 54111, 85941, 90185, 143235, 162333, 257823, 270555, 429705, 486999, 811665, 1289115, 1460997, 2434995, 4382991, 7304985, 21914955]

約数ペア:

[(1, 21914955), (3, 7304985), (5, 4382991), (9, 2434995), (15, 1460997), (17, 1289115), (27, 811665), (45, 486999), (51, 429705), (81, 270555), (85, 257823), (135, 162333), (153, 143235), (243, 90185), (255, 85941), (405, 54111), (459, 47745), (765, 28647), (1061, 20655), (1215, 18037), (1377, 15915), (2295, 9549), (3183, 6885), (4131, 5305)]