21336237

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{683}}^1$

素因数の和:794

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 13137363

約数列:

[1, 3, 9, 13, 27, 39, 89, 117, 267, 351, 683, 801, 1157, 2049, 2403, 3471, 6147, 8879, 10413, 18441, 26637, 31239, 60787, 79911, 182361, 239733, 547083, 790231, 1641249, 2370693, 7112079, 21336237]

約数ペア:

[(1, 21336237), (3, 7112079), (9, 2370693), (13, 1641249), (27, 790231), (39, 547083), (89, 239733), (117, 182361), (267, 79911), (351, 60787), (683, 31239), (801, 26637), (1157, 18441), (2049, 10413), (2403, 8879), (3471, 6147)]