28745487

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2111}}^1$

素因数の和:2223

約数の個数: 24

約数和(自身を含む): 44478720

約数和(自身を除く): 15733233

約数列:

[1, 3, 9, 17, 51, 89, 153, 267, 801, 1513, 2111, 4539, 6333, 13617, 18999, 35887, 107661, 187879, 322983, 563637, 1690911, 3193943, 9581829, 28745487]

約数ペア:

[(1, 28745487), (3, 9581829), (9, 3193943), (17, 1690911), (51, 563637), (89, 322983), (153, 187879), (267, 107661), (801, 35887), (1513, 18999), (2111, 13617), (4539, 6333)]