21692085

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{331}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 37003392

約数和(自身を除く): 15311307

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 257, 331, 771, 993, 1285, 1655, 3855, 4369, 4965, 5627, 13107, 16881, 21845, 28135, 65535, 84405, 85067, 255201, 425335, 1276005, 1446139, 4338417, 7230695, 21692085]

約数ペア:

[(1, 21692085), (3, 7230695), (5, 4338417), (15, 1446139), (17, 1276005), (51, 425335), (85, 255201), (255, 85067), (257, 84405), (331, 65535), (771, 28135), (993, 21845), (1285, 16881), (1655, 13107), (3855, 5627), (4369, 4965)]