213156519

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 299033856

約数和(自身を除く): 85877337

約数列:

[1, 3, 37, 107, 111, 131, 137, 321, 393, 411, 3959, 4847, 5069, 11877, 14017, 14541, 14659, 15207, 17947, 42051, 43977, 53841, 518629, 542383, 664039, 1555887, 1627149, 1920329, 1992117, 5760987, 71052173, 213156519]

約数ペア:

[(1, 213156519), (3, 71052173), (37, 5760987), (107, 1992117), (111, 1920329), (131, 1627149), (137, 1555887), (321, 664039), (393, 542383), (411, 518629), (3959, 53841), (4847, 43977), (5069, 42051), (11877, 17947), (14017, 15207), (14541, 14659)]