216371281

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{25357}}^1$

素因数の和:25440

約数の個数: 16

約数和(自身を含む): 262911744

約数和(自身を除く): 46540463

約数列:

[1, 7, 23, 53, 161, 371, 1219, 8533, 25357, 177499, 583211, 1343921, 4082477, 9407447, 30910183, 216371281]

約数ペア:

[(1, 216371281), (7, 30910183), (23, 9407447), (53, 4082477), (161, 1343921), (371, 583211), (1219, 177499), (8533, 25357)]