21406371843

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{487}}^1\times {\mathrm{2683}}^1$

素因数の和:3343

約数の個数: 32

約数和(自身を含む): 29506994176

約数和(自身を除く): 8100622333

約数列:

[1, 3, 43, 127, 129, 381, 487, 1461, 2683, 5461, 8049, 16383, 20941, 61849, 62823, 115369, 185547, 340741, 346107, 1022223, 1306621, 2659507, 3919863, 7978521, 14651863, 43955589, 56184703, 165940867, 168554109, 497822601, 7135457281, 21406371843]

約数ペア:

[(1, 21406371843), (3, 7135457281), (43, 497822601), (127, 168554109), (129, 165940867), (381, 56184703), (487, 43955589), (1461, 14651863), (2683, 7978521), (5461, 3919863), (8049, 2659507), (16383, 1306621), (20941, 1022223), (61849, 346107), (62823, 340741), (115369, 185547)]